Home / 7,923.52-11,876.88-5,731.20

Finding the Fourth Proportional to 7,923.52, 11,876.88 and 5,731.20

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Solution

The fourth proportional to 7,923.52, 11,876.88 and 5,731.20 is: 8,590.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.52 : 11,876.88 = 5,731.20 : x
  2. Step 2: Convert to fraction form
    7,923.52/11,876.88 = 5,731.20/x
  3. Step 3: Cross multiply
    7,923.52x = 11,876.88 × 5,731.20
  4. Step 4: Simplify right side
    7,923.52x = 68,068,774.66
  5. Step 5: Solve for x
    x = 68,068,774.66/7,923.52
  6. Step 6: Final answer
    x = 8,590.72

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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.