Home / 11,147.94-15,384.87-6,432.18

Finding the Fourth Proportional to 11,147.94, 15,384.87 and 6,432.18

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Solution

The fourth proportional to 11,147.94, 15,384.87 and 6,432.18 is: 8,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.94 : 15,384.87 = 6,432.18 : x
  2. Step 2: Convert to fraction form
    11,147.94/15,384.87 = 6,432.18/x
  3. Step 3: Cross multiply
    11,147.94x = 15,384.87 × 6,432.18
  4. Step 4: Simplify right side
    11,147.94x = 98,958,253.12
  5. Step 5: Solve for x
    x = 98,958,253.12/11,147.94
  6. Step 6: Final answer
    x = 8,876.82

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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.