Home / 10,884.70-16,278.45-9,135.10

Finding the Fourth Proportional to 10,884.70, 16,278.45 and 9,135.10

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Solution

The fourth proportional to 10,884.70, 16,278.45 and 9,135.10 is: 13,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.70 : 16,278.45 = 9,135.10 : x
  2. Step 2: Convert to fraction form
    10,884.70/16,278.45 = 9,135.10/x
  3. Step 3: Cross multiply
    10,884.70x = 16,278.45 × 9,135.10
  4. Step 4: Simplify right side
    10,884.70x = 148,705,268.60
  5. Step 5: Solve for x
    x = 148,705,268.60/10,884.70
  6. Step 6: Final answer
    x = 13,661.86

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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.