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Finding the Fourth Proportional to 8,342.93, 12,520.56 and 6,719.08

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Solution

The fourth proportional to 8,342.93, 12,520.56 and 6,719.08 is: 10,083.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.93 : 12,520.56 = 6,719.08 : x
  2. Step 2: Convert to fraction form
    8,342.93/12,520.56 = 6,719.08/x
  3. Step 3: Cross multiply
    8,342.93x = 12,520.56 × 6,719.08
  4. Step 4: Simplify right side
    8,342.93x = 84,126,644.28
  5. Step 5: Solve for x
    x = 84,126,644.28/8,342.93
  6. Step 6: Final answer
    x = 10,083.59

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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.