Home / 14,664.79-20,229.99-9,278.19

Finding the Fourth Proportional to 14,664.79, 20,229.99 and 9,278.19

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Solution

The fourth proportional to 14,664.79, 20,229.99 and 9,278.19 is: 12,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,664.79 : 20,229.99 = 9,278.19 : x
  2. Step 2: Convert to fraction form
    14,664.79/20,229.99 = 9,278.19/x
  3. Step 3: Cross multiply
    14,664.79x = 20,229.99 × 9,278.19
  4. Step 4: Simplify right side
    14,664.79x = 187,697,644.53
  5. Step 5: Solve for x
    x = 187,697,644.53/14,664.79
  6. Step 6: Final answer
    x = 12,799.20

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Double scale
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Similar ratio
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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.