Home / 15,132.96-20,882.88-8,417.52

Finding the Fourth Proportional to 15,132.96, 20,882.88 and 8,417.52

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Solution

The fourth proportional to 15,132.96, 20,882.88 and 8,417.52 is: 11,615.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.96 : 20,882.88 = 8,417.52 : x
  2. Step 2: Convert to fraction form
    15,132.96/20,882.88 = 8,417.52/x
  3. Step 3: Cross multiply
    15,132.96x = 20,882.88 × 8,417.52
  4. Step 4: Simplify right side
    15,132.96x = 175,782,060.06
  5. Step 5: Solve for x
    x = 175,782,060.06/15,132.96
  6. Step 6: Final answer
    x = 11,615.84

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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.