Home / 9,100.65-12,554.69-6,578.76

Finding the Fourth Proportional to 9,100.65, 12,554.69 and 6,578.76

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Solution

The fourth proportional to 9,100.65, 12,554.69 and 6,578.76 is: 9,075.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,100.65 : 12,554.69 = 6,578.76 : x
  2. Step 2: Convert to fraction form
    9,100.65/12,554.69 = 6,578.76/x
  3. Step 3: Cross multiply
    9,100.65x = 12,554.69 × 6,578.76
  4. Step 4: Simplify right side
    9,100.65x = 82,594,292.38
  5. Step 5: Solve for x
    x = 82,594,292.38/9,100.65
  6. Step 6: Final answer
    x = 9,075.65

Related Problems

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Half scale
Find fourth proportional to 18,201.30, 25,109.38 and 13,157.52
Double scale
Find fourth proportional to 9,101.65, 12,556.07 and 6,579.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.