Home / 8,909.55-12,295.20-4,876.47

Finding the Fourth Proportional to 8,909.55, 12,295.20 and 4,876.47

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Solution

The fourth proportional to 8,909.55, 12,295.20 and 4,876.47 is: 6,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.55 : 12,295.20 = 4,876.47 : x
  2. Step 2: Convert to fraction form
    8,909.55/12,295.20 = 4,876.47/x
  3. Step 3: Cross multiply
    8,909.55x = 12,295.20 × 4,876.47
  4. Step 4: Simplify right side
    8,909.55x = 59,957,173.94
  5. Step 5: Solve for x
    x = 59,957,173.94/8,909.55
  6. Step 6: Final answer
    x = 6,729.54

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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.