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Finding the Fourth Proportional to 8,443.14, 11,650.53 and 5,085.90

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Solution

The fourth proportional to 8,443.14, 11,650.53 and 5,085.90 is: 7,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.14 : 11,650.53 = 5,085.90 : x
  2. Step 2: Convert to fraction form
    8,443.14/11,650.53 = 5,085.90/x
  3. Step 3: Cross multiply
    8,443.14x = 11,650.53 × 5,085.90
  4. Step 4: Simplify right side
    8,443.14x = 59,253,430.53
  5. Step 5: Solve for x
    x = 59,253,430.53/8,443.14
  6. Step 6: Final answer
    x = 7,017.94

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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.