Home / 9,171.19-12,661.61-6,650.88

Finding the Fourth Proportional to 9,171.19, 12,661.61 and 6,650.88

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Solution

The fourth proportional to 9,171.19, 12,661.61 and 6,650.88 is: 9,182.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.19 : 12,661.61 = 6,650.88 : x
  2. Step 2: Convert to fraction form
    9,171.19/12,661.61 = 6,650.88/x
  3. Step 3: Cross multiply
    9,171.19x = 12,661.61 × 6,650.88
  4. Step 4: Simplify right side
    9,171.19x = 84,210,848.72
  5. Step 5: Solve for x
    x = 84,210,848.72/9,171.19
  6. Step 6: Final answer
    x = 9,182.11

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Half scale
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Double scale
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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.