Home / 10,957.52-15,120.56-6,240.88

Finding the Fourth Proportional to 10,957.52, 15,120.56 and 6,240.88

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Solution

The fourth proportional to 10,957.52, 15,120.56 and 6,240.88 is: 8,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.52 : 15,120.56 = 6,240.88 : x
  2. Step 2: Convert to fraction form
    10,957.52/15,120.56 = 6,240.88/x
  3. Step 3: Cross multiply
    10,957.52x = 15,120.56 × 6,240.88
  4. Step 4: Simplify right side
    10,957.52x = 94,365,600.49
  5. Step 5: Solve for x
    x = 94,365,600.49/10,957.52
  6. Step 6: Final answer
    x = 8,611.95

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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.