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Finding the Fourth Proportional to 14,871.38, 20,522.51 and 8,247.38

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Solution

The fourth proportional to 14,871.38, 20,522.51 and 8,247.38 is: 11,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.38 : 20,522.51 = 8,247.38 : x
  2. Step 2: Convert to fraction form
    14,871.38/20,522.51 = 8,247.38/x
  3. Step 3: Cross multiply
    14,871.38x = 20,522.51 × 8,247.38
  4. Step 4: Simplify right side
    14,871.38x = 169,256,794.67
  5. Step 5: Solve for x
    x = 169,256,794.67/14,871.38
  6. Step 6: Final answer
    x = 11,381.38

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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.