Home / 15,605.24-21,535.11-8,531.69

Finding the Fourth Proportional to 15,605.24, 21,535.11 and 8,531.69

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Solution

The fourth proportional to 15,605.24, 21,535.11 and 8,531.69 is: 11,773.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.24 : 21,535.11 = 8,531.69 : x
  2. Step 2: Convert to fraction form
    15,605.24/21,535.11 = 8,531.69/x
  3. Step 3: Cross multiply
    15,605.24x = 21,535.11 × 8,531.69
  4. Step 4: Simplify right side
    15,605.24x = 183,730,774.96
  5. Step 5: Solve for x
    x = 183,730,774.96/15,605.24
  6. Step 6: Final answer
    x = 11,773.66

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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.