Home / 15,847.92-21,868.47-9,132.21

Finding the Fourth Proportional to 15,847.92, 21,868.47 and 9,132.21

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Solution

The fourth proportional to 15,847.92, 21,868.47 and 9,132.21 is: 12,601.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,847.92 : 21,868.47 = 9,132.21 : x
  2. Step 2: Convert to fraction form
    15,847.92/21,868.47 = 9,132.21/x
  3. Step 3: Cross multiply
    15,847.92x = 21,868.47 × 9,132.21
  4. Step 4: Simplify right side
    15,847.92x = 199,707,460.42
  5. Step 5: Solve for x
    x = 199,707,460.42/15,847.92
  6. Step 6: Final answer
    x = 12,601.49

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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.