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Finding the Fourth Proportional to 13,363.11, 20,080.98 and 7,127.46

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Solution

The fourth proportional to 13,363.11, 20,080.98 and 7,127.46 is: 10,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.11 : 20,080.98 = 7,127.46 : x
  2. Step 2: Convert to fraction form
    13,363.11/20,080.98 = 7,127.46/x
  3. Step 3: Cross multiply
    13,363.11x = 20,080.98 × 7,127.46
  4. Step 4: Simplify right side
    13,363.11x = 143,126,381.71
  5. Step 5: Solve for x
    x = 143,126,381.71/13,363.11
  6. Step 6: Final answer
    x = 10,710.56

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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.