Home / 10,957.92-15,120.08-6,241.28

Finding the Fourth Proportional to 10,957.92, 15,120.08 and 6,241.28

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Solution

The fourth proportional to 10,957.92, 15,120.08 and 6,241.28 is: 8,611.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.92 : 15,120.08 = 6,241.28 : x
  2. Step 2: Convert to fraction form
    10,957.92/15,120.08 = 6,241.28/x
  3. Step 3: Cross multiply
    10,957.92x = 15,120.08 × 6,241.28
  4. Step 4: Simplify right side
    10,957.92x = 94,368,652.90
  5. Step 5: Solve for x
    x = 94,368,652.90/10,957.92
  6. Step 6: Final answer
    x = 8,611.91

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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.