Home / 8,943.75-12,342.38-5,217.75

Finding the Fourth Proportional to 8,943.75, 12,342.38 and 5,217.75

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Solution

The fourth proportional to 8,943.75, 12,342.38 and 5,217.75 is: 7,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.75 : 12,342.38 = 5,217.75 : x
  2. Step 2: Convert to fraction form
    8,943.75/12,342.38 = 5,217.75/x
  3. Step 3: Cross multiply
    8,943.75x = 12,342.38 × 5,217.75
  4. Step 4: Simplify right side
    8,943.75x = 64,399,427.16
  5. Step 5: Solve for x
    x = 64,399,427.16/8,943.75
  6. Step 6: Final answer
    x = 7,200.50

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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.