Home / 13,387.71-20,088.45-6,375.68

Finding the Fourth Proportional to 13,387.71, 20,088.45 and 6,375.68

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Solution

The fourth proportional to 13,387.71, 20,088.45 and 6,375.68 is: 9,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.71 : 20,088.45 = 6,375.68 : x
  2. Step 2: Convert to fraction form
    13,387.71/20,088.45 = 6,375.68/x
  3. Step 3: Cross multiply
    13,387.71x = 20,088.45 × 6,375.68
  4. Step 4: Simplify right side
    13,387.71x = 128,077,428.45
  5. Step 5: Solve for x
    x = 128,077,428.45/13,387.71
  6. Step 6: Final answer
    x = 9,566.79

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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.