Home / 11,718.19-16,171.53-6,681.60

Finding the Fourth Proportional to 11,718.19, 16,171.53 and 6,681.60

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Solution

The fourth proportional to 11,718.19, 16,171.53 and 6,681.60 is: 9,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.19 : 16,171.53 = 6,681.60 : x
  2. Step 2: Convert to fraction form
    11,718.19/16,171.53 = 6,681.60/x
  3. Step 3: Cross multiply
    11,718.19x = 16,171.53 × 6,681.60
  4. Step 4: Simplify right side
    11,718.19x = 108,051,694.85
  5. Step 5: Solve for x
    x = 108,051,694.85/11,718.19
  6. Step 6: Final answer
    x = 9,220.85

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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.