Home / 12,545.04-17,311.92-7,239.60

Finding the Fourth Proportional to 12,545.04, 17,311.92 and 7,239.60

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Solution

The fourth proportional to 12,545.04, 17,311.92 and 7,239.60 is: 9,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.04 : 17,311.92 = 7,239.60 : x
  2. Step 2: Convert to fraction form
    12,545.04/17,311.92 = 7,239.60/x
  3. Step 3: Cross multiply
    12,545.04x = 17,311.92 × 7,239.60
  4. Step 4: Simplify right side
    12,545.04x = 125,331,376.03
  5. Step 5: Solve for x
    x = 125,331,376.03/12,545.04
  6. Step 6: Final answer
    x = 9,990.51

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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.