Home / 10,087.80-15,134.22-9,920.37

Finding the Fourth Proportional to 10,087.80, 15,134.22 and 9,920.37

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Solution

The fourth proportional to 10,087.80, 15,134.22 and 9,920.37 is: 14,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.80 : 15,134.22 = 9,920.37 : x
  2. Step 2: Convert to fraction form
    10,087.80/15,134.22 = 9,920.37/x
  3. Step 3: Cross multiply
    10,087.80x = 15,134.22 × 9,920.37
  4. Step 4: Simplify right side
    10,087.80x = 150,137,062.06
  5. Step 5: Solve for x
    x = 150,137,062.06/10,087.80
  6. Step 6: Final answer
    x = 14,883.03

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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.