Home / 9,129.35-13,696.08-2,889.74

Finding the Fourth Proportional to 9,129.35, 13,696.08 and 2,889.74

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Solution

The fourth proportional to 9,129.35, 13,696.08 and 2,889.74 is: 4,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.35 : 13,696.08 = 2,889.74 : x
  2. Step 2: Convert to fraction form
    9,129.35/13,696.08 = 2,889.74/x
  3. Step 3: Cross multiply
    9,129.35x = 13,696.08 × 2,889.74
  4. Step 4: Simplify right side
    9,129.35x = 39,578,041.74
  5. Step 5: Solve for x
    x = 39,578,041.74/9,129.35
  6. Step 6: Final answer
    x = 4,335.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.