Home / 10,387.05-15,567.61-5,194.41

Finding the Fourth Proportional to 10,387.05, 15,567.61 and 5,194.41

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Solution

The fourth proportional to 10,387.05, 15,567.61 and 5,194.41 is: 7,785.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.05 : 15,567.61 = 5,194.41 : x
  2. Step 2: Convert to fraction form
    10,387.05/15,567.61 = 5,194.41/x
  3. Step 3: Cross multiply
    10,387.05x = 15,567.61 × 5,194.41
  4. Step 4: Simplify right side
    10,387.05x = 80,864,549.06
  5. Step 5: Solve for x
    x = 80,864,549.06/10,387.05
  6. Step 6: Final answer
    x = 7,785.13

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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.