Home / 12,913.24-17,818.90-7,248.61

Finding the Fourth Proportional to 12,913.24, 17,818.90 and 7,248.61

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Solution

The fourth proportional to 12,913.24, 17,818.90 and 7,248.61 is: 10,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.24 : 17,818.90 = 7,248.61 : x
  2. Step 2: Convert to fraction form
    12,913.24/17,818.90 = 7,248.61/x
  3. Step 3: Cross multiply
    12,913.24x = 17,818.90 × 7,248.61
  4. Step 4: Simplify right side
    12,913.24x = 129,162,194.87
  5. Step 5: Solve for x
    x = 129,162,194.87/12,913.24
  6. Step 6: Final answer
    x = 10,002.31

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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.