Home / 15,605.24-21,535.31-8,531.66

Finding the Fourth Proportional to 15,605.24, 21,535.31 and 8,531.66

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Solution

The fourth proportional to 15,605.24, 21,535.31 and 8,531.66 is: 11,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.24 : 21,535.31 = 8,531.66 : x
  2. Step 2: Convert to fraction form
    15,605.24/21,535.31 = 8,531.66/x
  3. Step 3: Cross multiply
    15,605.24x = 21,535.31 × 8,531.66
  4. Step 4: Simplify right side
    15,605.24x = 183,731,792.58
  5. Step 5: Solve for x
    x = 183,731,792.58/15,605.24
  6. Step 6: Final answer
    x = 11,773.73

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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.