Home / 8,432.56-11,639.40-4,897.36

Finding the Fourth Proportional to 8,432.56, 11,639.40 and 4,897.36

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Solution

The fourth proportional to 8,432.56, 11,639.40 and 4,897.36 is: 6,759.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.56 : 11,639.40 = 4,897.36 : x
  2. Step 2: Convert to fraction form
    8,432.56/11,639.40 = 4,897.36/x
  3. Step 3: Cross multiply
    8,432.56x = 11,639.40 × 4,897.36
  4. Step 4: Simplify right side
    8,432.56x = 57,002,331.98
  5. Step 5: Solve for x
    x = 57,002,331.98/8,432.56
  6. Step 6: Final answer
    x = 6,759.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.