Home / 11,186.04-15,438.78-6,470.76

Finding the Fourth Proportional to 11,186.04, 15,438.78 and 6,470.76

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Solution

The fourth proportional to 11,186.04, 15,438.78 and 6,470.76 is: 8,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.04 : 15,438.78 = 6,470.76 : x
  2. Step 2: Convert to fraction form
    11,186.04/15,438.78 = 6,470.76/x
  3. Step 3: Cross multiply
    11,186.04x = 15,438.78 × 6,470.76
  4. Step 4: Simplify right side
    11,186.04x = 99,900,640.07
  5. Step 5: Solve for x
    x = 99,900,640.07/11,186.04
  6. Step 6: Final answer
    x = 8,930.83

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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.