Home / 12,372.48-18,545.76-4,975.20

Finding the Fourth Proportional to 12,372.48, 18,545.76 and 4,975.20

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Solution

The fourth proportional to 12,372.48, 18,545.76 and 4,975.20 is: 7,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.48 : 18,545.76 = 4,975.20 : x
  2. Step 2: Convert to fraction form
    12,372.48/18,545.76 = 4,975.20/x
  3. Step 3: Cross multiply
    12,372.48x = 18,545.76 × 4,975.20
  4. Step 4: Simplify right side
    12,372.48x = 92,268,865.15
  5. Step 5: Solve for x
    x = 92,268,865.15/12,372.48
  6. Step 6: Final answer
    x = 7,457.59

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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.