Home / 8,139.24-12,194.91-5,465.82

Finding the Fourth Proportional to 8,139.24, 12,194.91 and 5,465.82

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Solution

The fourth proportional to 8,139.24, 12,194.91 and 5,465.82 is: 8,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.24 : 12,194.91 = 5,465.82 : x
  2. Step 2: Convert to fraction form
    8,139.24/12,194.91 = 5,465.82/x
  3. Step 3: Cross multiply
    8,139.24x = 12,194.91 × 5,465.82
  4. Step 4: Simplify right side
    8,139.24x = 66,655,182.98
  5. Step 5: Solve for x
    x = 66,655,182.98/8,139.24
  6. Step 6: Final answer
    x = 8,189.36

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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.