Home / 7,925.20-11,876.40-4,455.12

Finding the Fourth Proportional to 7,925.20, 11,876.40 and 4,455.12

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Solution

The fourth proportional to 7,925.20, 11,876.40 and 4,455.12 is: 6,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.20 : 11,876.40 = 4,455.12 : x
  2. Step 2: Convert to fraction form
    7,925.20/11,876.40 = 4,455.12/x
  3. Step 3: Cross multiply
    7,925.20x = 11,876.40 × 4,455.12
  4. Step 4: Simplify right side
    7,925.20x = 52,910,787.17
  5. Step 5: Solve for x
    x = 52,910,787.17/7,925.20
  6. Step 6: Final answer
    x = 6,676.27

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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.