Home / 14,781.18-20,398.20-8,816.24

Finding the Fourth Proportional to 14,781.18, 20,398.20 and 8,816.24

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Solution

The fourth proportional to 14,781.18, 20,398.20 and 8,816.24 is: 12,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.18 : 20,398.20 = 8,816.24 : x
  2. Step 2: Convert to fraction form
    14,781.18/20,398.20 = 8,816.24/x
  3. Step 3: Cross multiply
    14,781.18x = 20,398.20 × 8,816.24
  4. Step 4: Simplify right side
    14,781.18x = 179,835,426.77
  5. Step 5: Solve for x
    x = 179,835,426.77/14,781.18
  6. Step 6: Final answer
    x = 12,166.51

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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.