Home / 8,909.05-12,294.51-4,875.97

Finding the Fourth Proportional to 8,909.05, 12,294.51 and 4,875.97

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Solution

The fourth proportional to 8,909.05, 12,294.51 and 4,875.97 is: 6,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.05 : 12,294.51 = 4,875.97 : x
  2. Step 2: Convert to fraction form
    8,909.05/12,294.51 = 4,875.97/x
  3. Step 3: Cross multiply
    8,909.05x = 12,294.51 × 4,875.97
  4. Step 4: Simplify right side
    8,909.05x = 59,947,661.92
  5. Step 5: Solve for x
    x = 59,947,661.92/8,909.05
  6. Step 6: Final answer
    x = 6,728.85

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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.