Home / 9,766.40-14,649.60-3,927.20

Finding the Fourth Proportional to 9,766.40, 14,649.60 and 3,927.20

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Solution

The fourth proportional to 9,766.40, 14,649.60 and 3,927.20 is: 5,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,766.40 : 14,649.60 = 3,927.20 : x
  2. Step 2: Convert to fraction form
    9,766.40/14,649.60 = 3,927.20/x
  3. Step 3: Cross multiply
    9,766.40x = 14,649.60 × 3,927.20
  4. Step 4: Simplify right side
    9,766.40x = 57,531,909.12
  5. Step 5: Solve for x
    x = 57,531,909.12/9,766.40
  6. Step 6: Final answer
    x = 5,890.80

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Similar ratio
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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.