Home / 11,040.80-16,445.16-10,535.20

Finding the Fourth Proportional to 11,040.80, 16,445.16 and 10,535.20

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Solution

The fourth proportional to 11,040.80, 16,445.16 and 10,535.20 is: 15,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.80 : 16,445.16 = 10,535.20 : x
  2. Step 2: Convert to fraction form
    11,040.80/16,445.16 = 10,535.20/x
  3. Step 3: Cross multiply
    11,040.80x = 16,445.16 × 10,535.20
  4. Step 4: Simplify right side
    11,040.80x = 173,253,049.63
  5. Step 5: Solve for x
    x = 173,253,049.63/11,040.80
  6. Step 6: Final answer
    x = 15,692.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.