Home / 11,718.77-16,171.89-6,613.95

Finding the Fourth Proportional to 11,718.77, 16,171.89 and 6,613.95

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Solution

The fourth proportional to 11,718.77, 16,171.89 and 6,613.95 is: 9,127.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.77 : 16,171.89 = 6,613.95 : x
  2. Step 2: Convert to fraction form
    11,718.77/16,171.89 = 6,613.95/x
  3. Step 3: Cross multiply
    11,718.77x = 16,171.89 × 6,613.95
  4. Step 4: Simplify right side
    11,718.77x = 106,960,071.87
  5. Step 5: Solve for x
    x = 106,960,071.87/11,718.77
  6. Step 6: Final answer
    x = 9,127.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.