Home / 8,415.42-11,610.86-5,432.96

Finding the Fourth Proportional to 8,415.42, 11,610.86 and 5,432.96

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Solution

The fourth proportional to 8,415.42, 11,610.86 and 5,432.96 is: 7,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.42 : 11,610.86 = 5,432.96 : x
  2. Step 2: Convert to fraction form
    8,415.42/11,610.86 = 5,432.96/x
  3. Step 3: Cross multiply
    8,415.42x = 11,610.86 × 5,432.96
  4. Step 4: Simplify right side
    8,415.42x = 63,081,252.73
  5. Step 5: Solve for x
    x = 63,081,252.73/8,415.42
  6. Step 6: Final answer
    x = 7,495.91

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.