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Finding the Fourth Proportional to 13,385.98, 20,063.04 and 10,088.20

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Solution

The fourth proportional to 13,385.98, 20,063.04 and 10,088.20 is: 15,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.98 : 20,063.04 = 10,088.20 : x
  2. Step 2: Convert to fraction form
    13,385.98/20,063.04 = 10,088.20/x
  3. Step 3: Cross multiply
    13,385.98x = 20,063.04 × 10,088.20
  4. Step 4: Simplify right side
    13,385.98x = 202,399,960.13
  5. Step 5: Solve for x
    x = 202,399,960.13/13,385.98
  6. Step 6: Final answer
    x = 15,120.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.