Home / 8,460.36-12,691.89-2,616.95

Finding the Fourth Proportional to 8,460.36, 12,691.89 and 2,616.95

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Solution

The fourth proportional to 8,460.36, 12,691.89 and 2,616.95 is: 3,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.36 : 12,691.89 = 2,616.95 : x
  2. Step 2: Convert to fraction form
    8,460.36/12,691.89 = 2,616.95/x
  3. Step 3: Cross multiply
    8,460.36x = 12,691.89 × 2,616.95
  4. Step 4: Simplify right side
    8,460.36x = 33,214,073.27
  5. Step 5: Solve for x
    x = 33,214,073.27/8,460.36
  6. Step 6: Final answer
    x = 3,925.85

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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.