Home / 15,347.68-21,177.84-8,632.48

Finding the Fourth Proportional to 15,347.68, 21,177.84 and 8,632.48

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Solution

The fourth proportional to 15,347.68, 21,177.84 and 8,632.48 is: 11,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.68 : 21,177.84 = 8,632.48 : x
  2. Step 2: Convert to fraction form
    15,347.68/21,177.84 = 8,632.48/x
  3. Step 3: Cross multiply
    15,347.68x = 21,177.84 × 8,632.48
  4. Step 4: Simplify right side
    15,347.68x = 182,817,280.24
  5. Step 5: Solve for x
    x = 182,817,280.24/15,347.68
  6. Step 6: Final answer
    x = 11,911.72

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Similar ratio
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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.