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Finding the Fourth Proportional to 11,281.57, 15,568.59 and 6,747.19

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Solution

The fourth proportional to 11,281.57, 15,568.59 and 6,747.19 is: 9,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.57 : 15,568.59 = 6,747.19 : x
  2. Step 2: Convert to fraction form
    11,281.57/15,568.59 = 6,747.19/x
  3. Step 3: Cross multiply
    11,281.57x = 15,568.59 × 6,747.19
  4. Step 4: Simplify right side
    11,281.57x = 105,044,256.82
  5. Step 5: Solve for x
    x = 105,044,256.82/11,281.57
  6. Step 6: Final answer
    x = 9,311.14

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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.