Home / 8,724.72-12,040.08-5,141.76

Finding the Fourth Proportional to 8,724.72, 12,040.08 and 5,141.76

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Solution

The fourth proportional to 8,724.72, 12,040.08 and 5,141.76 is: 7,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.72 : 12,040.08 = 5,141.76 : x
  2. Step 2: Convert to fraction form
    8,724.72/12,040.08 = 5,141.76/x
  3. Step 3: Cross multiply
    8,724.72x = 12,040.08 × 5,141.76
  4. Step 4: Simplify right side
    8,724.72x = 61,907,201.74
  5. Step 5: Solve for x
    x = 61,907,201.74/8,724.72
  6. Step 6: Final answer
    x = 7,095.61

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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.