Home / 13,561.12-20,331.24-6,537.52

Finding the Fourth Proportional to 13,561.12, 20,331.24 and 6,537.52

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Solution

The fourth proportional to 13,561.12, 20,331.24 and 6,537.52 is: 9,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.12 : 20,331.24 = 6,537.52 : x
  2. Step 2: Convert to fraction form
    13,561.12/20,331.24 = 6,537.52/x
  3. Step 3: Cross multiply
    13,561.12x = 20,331.24 × 6,537.52
  4. Step 4: Simplify right side
    13,561.12x = 132,915,888.12
  5. Step 5: Solve for x
    x = 132,915,888.12/13,561.12
  6. Step 6: Final answer
    x = 9,801.25

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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.