Home / 11,077.60-16,616.40-10,105.60

Finding the Fourth Proportional to 11,077.60, 16,616.40 and 10,105.60

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Solution

The fourth proportional to 11,077.60, 16,616.40 and 10,105.60 is: 15,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.60 : 16,616.40 = 10,105.60 : x
  2. Step 2: Convert to fraction form
    11,077.60/16,616.40 = 10,105.60/x
  3. Step 3: Cross multiply
    11,077.60x = 16,616.40 × 10,105.60
  4. Step 4: Simplify right side
    11,077.60x = 167,918,691.84
  5. Step 5: Solve for x
    x = 167,918,691.84/11,077.60
  6. Step 6: Final answer
    x = 15,158.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.