Home / 12,036.90-16,615.49-10,775.70

Finding the Fourth Proportional to 12,036.90, 16,615.49 and 10,775.70

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Solution

The fourth proportional to 12,036.90, 16,615.49 and 10,775.70 is: 14,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036.90 : 16,615.49 = 10,775.70 : x
  2. Step 2: Convert to fraction form
    12,036.90/16,615.49 = 10,775.70/x
  3. Step 3: Cross multiply
    12,036.90x = 16,615.49 × 10,775.70
  4. Step 4: Simplify right side
    12,036.90x = 179,043,487.38
  5. Step 5: Solve for x
    x = 179,043,487.38/12,036.90
  6. Step 6: Final answer
    x = 14,874.55

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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.