Home / 15,017.27-20,728.74-10,542.12

Finding the Fourth Proportional to 15,017.27, 20,728.74 and 10,542.12

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Solution

The fourth proportional to 15,017.27, 20,728.74 and 10,542.12 is: 14,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.27 : 20,728.74 = 10,542.12 : x
  2. Step 2: Convert to fraction form
    15,017.27/20,728.74 = 10,542.12/x
  3. Step 3: Cross multiply
    15,017.27x = 20,728.74 × 10,542.12
  4. Step 4: Simplify right side
    15,017.27x = 218,524,826.33
  5. Step 5: Solve for x
    x = 218,524,826.33/15,017.27
  6. Step 6: Final answer
    x = 14,551.57

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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.