Home / 12,545.34-18,818.04-4,231.20

Finding the Fourth Proportional to 12,545.34, 18,818.04 and 4,231.20

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Solution

The fourth proportional to 12,545.34, 18,818.04 and 4,231.20 is: 6,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.34 : 18,818.04 = 4,231.20 : x
  2. Step 2: Convert to fraction form
    12,545.34/18,818.04 = 4,231.20/x
  3. Step 3: Cross multiply
    12,545.34x = 18,818.04 × 4,231.20
  4. Step 4: Simplify right side
    12,545.34x = 79,622,807.34
  5. Step 5: Solve for x
    x = 79,622,807.34/12,545.34
  6. Step 6: Final answer
    x = 6,346.80

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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.