Home / 8,081.95-12,110.54-5,439.68

Finding the Fourth Proportional to 8,081.95, 12,110.54 and 5,439.68

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Solution

The fourth proportional to 8,081.95, 12,110.54 and 5,439.68 is: 8,151.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.95 : 12,110.54 = 5,439.68 : x
  2. Step 2: Convert to fraction form
    8,081.95/12,110.54 = 5,439.68/x
  3. Step 3: Cross multiply
    8,081.95x = 12,110.54 × 5,439.68
  4. Step 4: Simplify right side
    8,081.95x = 65,877,462.23
  5. Step 5: Solve for x
    x = 65,877,462.23/8,081.95
  6. Step 6: Final answer
    x = 8,151.19

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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.