Home / 12,724.68-17,541.48-8,936.40

Finding the Fourth Proportional to 12,724.68, 17,541.48 and 8,936.40

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Solution

The fourth proportional to 12,724.68, 17,541.48 and 8,936.40 is: 12,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.68 : 17,541.48 = 8,936.40 : x
  2. Step 2: Convert to fraction form
    12,724.68/17,541.48 = 8,936.40/x
  3. Step 3: Cross multiply
    12,724.68x = 17,541.48 × 8,936.40
  4. Step 4: Simplify right side
    12,724.68x = 156,757,681.87
  5. Step 5: Solve for x
    x = 156,757,681.87/12,724.68
  6. Step 6: Final answer
    x = 12,319.18

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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.