Home / 12,724.08-17,558.28-7,134

Finding the Fourth Proportional to 12,724.08, 17,558.28 and 7,134

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Solution

The fourth proportional to 12,724.08, 17,558.28 and 7,134 is: 9,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.08 : 17,558.28 = 7,134 : x
  2. Step 2: Convert to fraction form
    12,724.08/17,558.28 = 7,134/x
  3. Step 3: Cross multiply
    12,724.08x = 17,558.28 × 7,134
  4. Step 4: Simplify right side
    12,724.08x = 125,260,769.52
  5. Step 5: Solve for x
    x = 125,260,769.52/12,724.08
  6. Step 6: Final answer
    x = 9,844.39

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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.