Home / 11,432.43-15,777.88-7,186.69

Finding the Fourth Proportional to 11,432.43, 15,777.88 and 7,186.69

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Solution

The fourth proportional to 11,432.43, 15,777.88 and 7,186.69 is: 9,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.43 : 15,777.88 = 7,186.69 : x
  2. Step 2: Convert to fraction form
    11,432.43/15,777.88 = 7,186.69/x
  3. Step 3: Cross multiply
    11,432.43x = 15,777.88 × 7,186.69
  4. Step 4: Simplify right side
    11,432.43x = 113,390,732.42
  5. Step 5: Solve for x
    x = 113,390,732.42/11,432.43
  6. Step 6: Final answer
    x = 9,918.34

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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.