Home / 8,938.76-12,335.62-4,905.92

Finding the Fourth Proportional to 8,938.76, 12,335.62 and 4,905.92

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Solution

The fourth proportional to 8,938.76, 12,335.62 and 4,905.92 is: 6,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.76 : 12,335.62 = 4,905.92 : x
  2. Step 2: Convert to fraction form
    8,938.76/12,335.62 = 4,905.92/x
  3. Step 3: Cross multiply
    8,938.76x = 12,335.62 × 4,905.92
  4. Step 4: Simplify right side
    8,938.76x = 60,517,564.87
  5. Step 5: Solve for x
    x = 60,517,564.87/8,938.76
  6. Step 6: Final answer
    x = 6,770.24

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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.