Home / 12,459.10-18,691.38-3,693.48

Finding the Fourth Proportional to 12,459.10, 18,691.38 and 3,693.48

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Solution

The fourth proportional to 12,459.10, 18,691.38 and 3,693.48 is: 5,541.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.10 : 18,691.38 = 3,693.48 : x
  2. Step 2: Convert to fraction form
    12,459.10/18,691.38 = 3,693.48/x
  3. Step 3: Cross multiply
    12,459.10x = 18,691.38 × 3,693.48
  4. Step 4: Simplify right side
    12,459.10x = 69,036,238.20
  5. Step 5: Solve for x
    x = 69,036,238.20/12,459.10
  6. Step 6: Final answer
    x = 5,541.03

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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.