Home / 8,117.42-12,159.04-5,154.37

Finding the Fourth Proportional to 8,117.42, 12,159.04 and 5,154.37

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Solution

The fourth proportional to 8,117.42, 12,159.04 and 5,154.37 is: 7,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.42 : 12,159.04 = 5,154.37 : x
  2. Step 2: Convert to fraction form
    8,117.42/12,159.04 = 5,154.37/x
  3. Step 3: Cross multiply
    8,117.42x = 12,159.04 × 5,154.37
  4. Step 4: Simplify right side
    8,117.42x = 62,672,194.18
  5. Step 5: Solve for x
    x = 62,672,194.18/8,117.42
  6. Step 6: Final answer
    x = 7,720.71

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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.