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Finding the Fourth Proportional to 18,871.04, 26,040.96 and 10,487.04

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Solution

The fourth proportional to 18,871.04, 26,040.96 and 10,487.04 is: 14,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.04 : 26,040.96 = 10,487.04 : x
  2. Step 2: Convert to fraction form
    18,871.04/26,040.96 = 10,487.04/x
  3. Step 3: Cross multiply
    18,871.04x = 26,040.96 × 10,487.04
  4. Step 4: Simplify right side
    18,871.04x = 273,092,589.16
  5. Step 5: Solve for x
    x = 273,092,589.16/18,871.04
  6. Step 6: Final answer
    x = 14,471.52

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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.