Home / 12,545.70-18,818.10-5,148.24

Finding the Fourth Proportional to 12,545.70, 18,818.10 and 5,148.24

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Solution

The fourth proportional to 12,545.70, 18,818.10 and 5,148.24 is: 7,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.70 : 18,818.10 = 5,148.24 : x
  2. Step 2: Convert to fraction form
    12,545.70/18,818.10 = 5,148.24/x
  3. Step 3: Cross multiply
    12,545.70x = 18,818.10 × 5,148.24
  4. Step 4: Simplify right side
    12,545.70x = 96,880,095.14
  5. Step 5: Solve for x
    x = 96,880,095.14/12,545.70
  6. Step 6: Final answer
    x = 7,722.18

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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.