Home / 15,314.90-21,132.99-8,601.27

Finding the Fourth Proportional to 15,314.90, 21,132.99 and 8,601.27

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Solution

The fourth proportional to 15,314.90, 21,132.99 and 8,601.27 is: 11,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.90 : 21,132.99 = 8,601.27 : x
  2. Step 2: Convert to fraction form
    15,314.90/21,132.99 = 8,601.27/x
  3. Step 3: Cross multiply
    15,314.90x = 21,132.99 × 8,601.27
  4. Step 4: Simplify right side
    15,314.90x = 181,770,552.90
  5. Step 5: Solve for x
    x = 181,770,552.90/15,314.90
  6. Step 6: Final answer
    x = 11,868.87

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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.