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Finding the Fourth Proportional to 14,890.16, 20,549.16 and 8,175.71

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Solution

The fourth proportional to 14,890.16, 20,549.16 and 8,175.71 is: 11,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.16 : 20,549.16 = 8,175.71 : x
  2. Step 2: Convert to fraction form
    14,890.16/20,549.16 = 8,175.71/x
  3. Step 3: Cross multiply
    14,890.16x = 20,549.16 × 8,175.71
  4. Step 4: Simplify right side
    14,890.16x = 168,003,870.16
  5. Step 5: Solve for x
    x = 168,003,870.16/14,890.16
  6. Step 6: Final answer
    x = 11,282.88

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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.