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Finding the Fourth Proportional to 14,781.02, 20,398.02 and 8,816.16

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Solution

The fourth proportional to 14,781.02, 20,398.02 and 8,816.16 is: 12,166.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.02 : 20,398.02 = 8,816.16 : x
  2. Step 2: Convert to fraction form
    14,781.02/20,398.02 = 8,816.16/x
  3. Step 3: Cross multiply
    14,781.02x = 20,398.02 × 8,816.16
  4. Step 4: Simplify right side
    14,781.02x = 179,832,208.00
  5. Step 5: Solve for x
    x = 179,832,208.00/14,781.02
  6. Step 6: Final answer
    x = 12,166.43

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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.