Home / 12,248.40-18,363.60-4,849.20

Finding the Fourth Proportional to 12,248.40, 18,363.60 and 4,849.20

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Solution

The fourth proportional to 12,248.40, 18,363.60 and 4,849.20 is: 7,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.40 : 18,363.60 = 4,849.20 : x
  2. Step 2: Convert to fraction form
    12,248.40/18,363.60 = 4,849.20/x
  3. Step 3: Cross multiply
    12,248.40x = 18,363.60 × 4,849.20
  4. Step 4: Simplify right side
    12,248.40x = 89,048,769.12
  5. Step 5: Solve for x
    x = 89,048,769.12/12,248.40
  6. Step 6: Final answer
    x = 7,270.24

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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.