Home / 11,407.59-17,115.33-4,747.68

Finding the Fourth Proportional to 11,407.59, 17,115.33 and 4,747.68

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Solution

The fourth proportional to 11,407.59, 17,115.33 and 4,747.68 is: 7,123.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.59 : 17,115.33 = 4,747.68 : x
  2. Step 2: Convert to fraction form
    11,407.59/17,115.33 = 4,747.68/x
  3. Step 3: Cross multiply
    11,407.59x = 17,115.33 × 4,747.68
  4. Step 4: Simplify right side
    11,407.59x = 81,258,109.93
  5. Step 5: Solve for x
    x = 81,258,109.93/11,407.59
  6. Step 6: Final answer
    x = 7,123.16

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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.