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Finding the Fourth Proportional to 14,520.57, 20,019.20 and 9,475.99

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Solution

The fourth proportional to 14,520.57, 20,019.20 and 9,475.99 is: 13,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.57 : 20,019.20 = 9,475.99 : x
  2. Step 2: Convert to fraction form
    14,520.57/20,019.20 = 9,475.99/x
  3. Step 3: Cross multiply
    14,520.57x = 20,019.20 × 9,475.99
  4. Step 4: Simplify right side
    14,520.57x = 189,701,694.88
  5. Step 5: Solve for x
    x = 189,701,694.88/14,520.57
  6. Step 6: Final answer
    x = 13,064.35

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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.