Home / 12,915.47-19,345.66-6,241.88

Finding the Fourth Proportional to 12,915.47, 19,345.66 and 6,241.88

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Solution

The fourth proportional to 12,915.47, 19,345.66 and 6,241.88 is: 9,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.47 : 19,345.66 = 6,241.88 : x
  2. Step 2: Convert to fraction form
    12,915.47/19,345.66 = 6,241.88/x
  3. Step 3: Cross multiply
    12,915.47x = 19,345.66 × 6,241.88
  4. Step 4: Simplify right side
    12,915.47x = 120,753,321.00
  5. Step 5: Solve for x
    x = 120,753,321.00/12,915.47
  6. Step 6: Final answer
    x = 9,349.51

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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.