Home / 19,278.76-28,909.98-6,127.60

Finding the Fourth Proportional to 19,278.76, 28,909.98 and 6,127.60

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Solution

The fourth proportional to 19,278.76, 28,909.98 and 6,127.60 is: 9,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.76 : 28,909.98 = 6,127.60 : x
  2. Step 2: Convert to fraction form
    19,278.76/28,909.98 = 6,127.60/x
  3. Step 3: Cross multiply
    19,278.76x = 28,909.98 × 6,127.60
  4. Step 4: Simplify right side
    19,278.76x = 177,148,793.45
  5. Step 5: Solve for x
    x = 177,148,793.45/19,278.76
  6. Step 6: Final answer
    x = 9,188.81

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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.