Home / 8,261.28-12,394.08-2,715.48

Finding the Fourth Proportional to 8,261.28, 12,394.08 and 2,715.48

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Solution

The fourth proportional to 8,261.28, 12,394.08 and 2,715.48 is: 4,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.28 : 12,394.08 = 2,715.48 : x
  2. Step 2: Convert to fraction form
    8,261.28/12,394.08 = 2,715.48/x
  3. Step 3: Cross multiply
    8,261.28x = 12,394.08 × 2,715.48
  4. Step 4: Simplify right side
    8,261.28x = 33,655,876.36
  5. Step 5: Solve for x
    x = 33,655,876.36/8,261.28
  6. Step 6: Final answer
    x = 4,073.93

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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.