Home / 15,049.26-20,768.16-8,761.50

Finding the Fourth Proportional to 15,049.26, 20,768.16 and 8,761.50

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Solution

The fourth proportional to 15,049.26, 20,768.16 and 8,761.50 is: 12,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.26 : 20,768.16 = 8,761.50 : x
  2. Step 2: Convert to fraction form
    15,049.26/20,768.16 = 8,761.50/x
  3. Step 3: Cross multiply
    15,049.26x = 20,768.16 × 8,761.50
  4. Step 4: Simplify right side
    15,049.26x = 181,960,233.84
  5. Step 5: Solve for x
    x = 181,960,233.84/15,049.26
  6. Step 6: Final answer
    x = 12,090.98

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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.