Home / 15,373.61-21,217.62-8,660.57

Finding the Fourth Proportional to 15,373.61, 21,217.62 and 8,660.57

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Solution

The fourth proportional to 15,373.61, 21,217.62 and 8,660.57 is: 11,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.61 : 21,217.62 = 8,660.57 : x
  2. Step 2: Convert to fraction form
    15,373.61/21,217.62 = 8,660.57/x
  3. Step 3: Cross multiply
    15,373.61x = 21,217.62 × 8,660.57
  4. Step 4: Simplify right side
    15,373.61x = 183,756,630.20
  5. Step 5: Solve for x
    x = 183,756,630.20/15,373.61
  6. Step 6: Final answer
    x = 11,952.73

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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.