Home / 10,976.06-15,143.50-6,724.92

Finding the Fourth Proportional to 10,976.06, 15,143.50 and 6,724.92

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Solution

The fourth proportional to 10,976.06, 15,143.50 and 6,724.92 is: 9,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.06 : 15,143.50 = 6,724.92 : x
  2. Step 2: Convert to fraction form
    10,976.06/15,143.50 = 6,724.92/x
  3. Step 3: Cross multiply
    10,976.06x = 15,143.50 × 6,724.92
  4. Step 4: Simplify right side
    10,976.06x = 101,838,826.02
  5. Step 5: Solve for x
    x = 101,838,826.02/10,976.06
  6. Step 6: Final answer
    x = 9,278.27

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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.