Home / 10,963.20-16,443.36-4,393.20

Finding the Fourth Proportional to 10,963.20, 16,443.36 and 4,393.20

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Solution

The fourth proportional to 10,963.20, 16,443.36 and 4,393.20 is: 6,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.20 : 16,443.36 = 4,393.20 : x
  2. Step 2: Convert to fraction form
    10,963.20/16,443.36 = 4,393.20/x
  3. Step 3: Cross multiply
    10,963.20x = 16,443.36 × 4,393.20
  4. Step 4: Simplify right side
    10,963.20x = 72,238,969.15
  5. Step 5: Solve for x
    x = 72,238,969.15/10,963.20
  6. Step 6: Final answer
    x = 6,589.22

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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.