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Finding the Fourth Proportional to 10,642.54, 15,963.36 and 4,400.86

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Solution

The fourth proportional to 10,642.54, 15,963.36 and 4,400.86 is: 6,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.54 : 15,963.36 = 4,400.86 : x
  2. Step 2: Convert to fraction form
    10,642.54/15,963.36 = 4,400.86/x
  3. Step 3: Cross multiply
    10,642.54x = 15,963.36 × 4,400.86
  4. Step 4: Simplify right side
    10,642.54x = 70,252,512.49
  5. Step 5: Solve for x
    x = 70,252,512.49/10,642.54
  6. Step 6: Final answer
    x = 6,601.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.