Home / 9,112.08-12,561.84-6,876.48

Finding the Fourth Proportional to 9,112.08, 12,561.84 and 6,876.48

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Solution

The fourth proportional to 9,112.08, 12,561.84 and 6,876.48 is: 9,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.08 : 12,561.84 = 6,876.48 : x
  2. Step 2: Convert to fraction form
    9,112.08/12,561.84 = 6,876.48/x
  3. Step 3: Cross multiply
    9,112.08x = 12,561.84 × 6,876.48
  4. Step 4: Simplify right side
    9,112.08x = 86,381,241.52
  5. Step 5: Solve for x
    x = 86,381,241.52/9,112.08
  6. Step 6: Final answer
    x = 9,479.86

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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.