Home / 8,159.51-12,230.22-5,387.96

Finding the Fourth Proportional to 8,159.51, 12,230.22 and 5,387.96

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Solution

The fourth proportional to 8,159.51, 12,230.22 and 5,387.96 is: 8,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.51 : 12,230.22 = 5,387.96 : x
  2. Step 2: Convert to fraction form
    8,159.51/12,230.22 = 5,387.96/x
  3. Step 3: Cross multiply
    8,159.51x = 12,230.22 × 5,387.96
  4. Step 4: Simplify right side
    8,159.51x = 65,895,936.15
  5. Step 5: Solve for x
    x = 65,895,936.15/8,159.51
  6. Step 6: Final answer
    x = 8,075.97

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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.