Home / 12,545.40-18,818.14-4,231.26

Finding the Fourth Proportional to 12,545.40, 18,818.14 and 4,231.26

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Solution

The fourth proportional to 12,545.40, 18,818.14 and 4,231.26 is: 6,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.40 : 18,818.14 = 4,231.26 : x
  2. Step 2: Convert to fraction form
    12,545.40/18,818.14 = 4,231.26/x
  3. Step 3: Cross multiply
    12,545.40x = 18,818.14 × 4,231.26
  4. Step 4: Simplify right side
    12,545.40x = 79,624,374.85
  5. Step 5: Solve for x
    x = 79,624,374.85/12,545.40
  6. Step 6: Final answer
    x = 6,346.90

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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.