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Finding the Fourth Proportional to 14,807.40, 22,207.90 and 6,487.40

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Solution

The fourth proportional to 14,807.40, 22,207.90 and 6,487.40 is: 9,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,807.40 : 22,207.90 = 6,487.40 : x
  2. Step 2: Convert to fraction form
    14,807.40/22,207.90 = 6,487.40/x
  3. Step 3: Cross multiply
    14,807.40x = 22,207.90 × 6,487.40
  4. Step 4: Simplify right side
    14,807.40x = 144,071,530.46
  5. Step 5: Solve for x
    x = 144,071,530.46/14,807.40
  6. Step 6: Final answer
    x = 9,729.70

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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.