Home / 14,767.28-20,381.08-9,180.08

Finding the Fourth Proportional to 14,767.28, 20,381.08 and 9,180.08

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Solution

The fourth proportional to 14,767.28, 20,381.08 and 9,180.08 is: 12,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,767.28 : 20,381.08 = 9,180.08 : x
  2. Step 2: Convert to fraction form
    14,767.28/20,381.08 = 9,180.08/x
  3. Step 3: Cross multiply
    14,767.28x = 20,381.08 × 9,180.08
  4. Step 4: Simplify right side
    14,767.28x = 187,099,944.89
  5. Step 5: Solve for x
    x = 187,099,944.89/14,767.28
  6. Step 6: Final answer
    x = 12,669.90

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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.