Home / 7,884.40-11,826.60-4,385.20

Finding the Fourth Proportional to 7,884.40, 11,826.60 and 4,385.20

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Solution

The fourth proportional to 7,884.40, 11,826.60 and 4,385.20 is: 6,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.40 : 11,826.60 = 4,385.20 : x
  2. Step 2: Convert to fraction form
    7,884.40/11,826.60 = 4,385.20/x
  3. Step 3: Cross multiply
    7,884.40x = 11,826.60 × 4,385.20
  4. Step 4: Simplify right side
    7,884.40x = 51,862,006.32
  5. Step 5: Solve for x
    x = 51,862,006.32/7,884.40
  6. Step 6: Final answer
    x = 6,577.80

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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.