Home / 9,985.93-13,776.21-6,578.54

Finding the Fourth Proportional to 9,985.93, 13,776.21 and 6,578.54

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Solution

The fourth proportional to 9,985.93, 13,776.21 and 6,578.54 is: 9,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.93 : 13,776.21 = 6,578.54 : x
  2. Step 2: Convert to fraction form
    9,985.93/13,776.21 = 6,578.54/x
  3. Step 3: Cross multiply
    9,985.93x = 13,776.21 × 6,578.54
  4. Step 4: Simplify right side
    9,985.93x = 90,627,279.65
  5. Step 5: Solve for x
    x = 90,627,279.65/9,985.93
  6. Step 6: Final answer
    x = 9,075.50

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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.