Home / 15,562.40-23,322.85-8,531.81

Finding the Fourth Proportional to 15,562.40, 23,322.85 and 8,531.81

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Solution

The fourth proportional to 15,562.40, 23,322.85 and 8,531.81 is: 12,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.40 : 23,322.85 = 8,531.81 : x
  2. Step 2: Convert to fraction form
    15,562.40/23,322.85 = 8,531.81/x
  3. Step 3: Cross multiply
    15,562.40x = 23,322.85 × 8,531.81
  4. Step 4: Simplify right side
    15,562.40x = 198,985,986.91
  5. Step 5: Solve for x
    x = 198,985,986.91/15,562.40
  6. Step 6: Final answer
    x = 12,786.33

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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.