Home / 12,215.90-18,323.85-9,737.30

Finding the Fourth Proportional to 12,215.90, 18,323.85 and 9,737.30

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Solution

The fourth proportional to 12,215.90, 18,323.85 and 9,737.30 is: 14,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.90 : 18,323.85 = 9,737.30 : x
  2. Step 2: Convert to fraction form
    12,215.90/18,323.85 = 9,737.30/x
  3. Step 3: Cross multiply
    12,215.90x = 18,323.85 × 9,737.30
  4. Step 4: Simplify right side
    12,215.90x = 178,424,824.61
  5. Step 5: Solve for x
    x = 178,424,824.61/12,215.90
  6. Step 6: Final answer
    x = 14,605.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.