Home / 10,387.47-14,336.55-6,138.36

Finding the Fourth Proportional to 10,387.47, 14,336.55 and 6,138.36

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Solution

The fourth proportional to 10,387.47, 14,336.55 and 6,138.36 is: 8,472.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.47 : 14,336.55 = 6,138.36 : x
  2. Step 2: Convert to fraction form
    10,387.47/14,336.55 = 6,138.36/x
  3. Step 3: Cross multiply
    10,387.47x = 14,336.55 × 6,138.36
  4. Step 4: Simplify right side
    10,387.47x = 88,002,905.06
  5. Step 5: Solve for x
    x = 88,002,905.06/10,387.47
  6. Step 6: Final answer
    x = 8,472.02

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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.