Home / 12,254.76-16,911.70-6,665.80

Finding the Fourth Proportional to 12,254.76, 16,911.70 and 6,665.80

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Solution

The fourth proportional to 12,254.76, 16,911.70 and 6,665.80 is: 9,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.76 : 16,911.70 = 6,665.80 : x
  2. Step 2: Convert to fraction form
    12,254.76/16,911.70 = 6,665.80/x
  3. Step 3: Cross multiply
    12,254.76x = 16,911.70 × 6,665.80
  4. Step 4: Simplify right side
    12,254.76x = 112,730,009.86
  5. Step 5: Solve for x
    x = 112,730,009.86/12,254.76
  6. Step 6: Final answer
    x = 9,198.88

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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.