Home / 8,531.88-11,769.80-7,350.90

Finding the Fourth Proportional to 8,531.88, 11,769.80 and 7,350.90

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Solution

The fourth proportional to 8,531.88, 11,769.80 and 7,350.90 is: 10,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.88 : 11,769.80 = 7,350.90 : x
  2. Step 2: Convert to fraction form
    8,531.88/11,769.80 = 7,350.90/x
  3. Step 3: Cross multiply
    8,531.88x = 11,769.80 × 7,350.90
  4. Step 4: Simplify right side
    8,531.88x = 86,518,622.82
  5. Step 5: Solve for x
    x = 86,518,622.82/8,531.88
  6. Step 6: Final answer
    x = 10,140.63

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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.