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Finding the Fourth Proportional to 8,758.50, 12,083.56 and 6,742.53

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Solution

The fourth proportional to 8,758.50, 12,083.56 and 6,742.53 is: 9,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.50 : 12,083.56 = 6,742.53 : x
  2. Step 2: Convert to fraction form
    8,758.50/12,083.56 = 6,742.53/x
  3. Step 3: Cross multiply
    8,758.50x = 12,083.56 × 6,742.53
  4. Step 4: Simplify right side
    8,758.50x = 81,473,728.92
  5. Step 5: Solve for x
    x = 81,473,728.92/8,758.50
  6. Step 6: Final answer
    x = 9,302.25

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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.