Home / 12,401.19-17,118.14-8,210.79

Finding the Fourth Proportional to 12,401.19, 17,118.14 and 8,210.79

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Solution

The fourth proportional to 12,401.19, 17,118.14 and 8,210.79 is: 11,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.19 : 17,118.14 = 8,210.79 : x
  2. Step 2: Convert to fraction form
    12,401.19/17,118.14 = 8,210.79/x
  3. Step 3: Cross multiply
    12,401.19x = 17,118.14 × 8,210.79
  4. Step 4: Simplify right side
    12,401.19x = 140,553,411.68
  5. Step 5: Solve for x
    x = 140,553,411.68/12,401.19
  6. Step 6: Final answer
    x = 11,333.86

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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.