Home / 12,376.40-17,079.22-6,998.75

Finding the Fourth Proportional to 12,376.40, 17,079.22 and 6,998.75

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Solution

The fourth proportional to 12,376.40, 17,079.22 and 6,998.75 is: 9,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.40 : 17,079.22 = 6,998.75 : x
  2. Step 2: Convert to fraction form
    12,376.40/17,079.22 = 6,998.75/x
  3. Step 3: Cross multiply
    12,376.40x = 17,079.22 × 6,998.75
  4. Step 4: Simplify right side
    12,376.40x = 119,533,190.98
  5. Step 5: Solve for x
    x = 119,533,190.98/12,376.40
  6. Step 6: Final answer
    x = 9,658.16

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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.