Home / 15,699.20-23,548.80-5,169.20

Finding the Fourth Proportional to 15,699.20, 23,548.80 and 5,169.20

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Solution

The fourth proportional to 15,699.20, 23,548.80 and 5,169.20 is: 7,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.20 : 23,548.80 = 5,169.20 : x
  2. Step 2: Convert to fraction form
    15,699.20/23,548.80 = 5,169.20/x
  3. Step 3: Cross multiply
    15,699.20x = 23,548.80 × 5,169.20
  4. Step 4: Simplify right side
    15,699.20x = 121,728,456.96
  5. Step 5: Solve for x
    x = 121,728,456.96/15,699.20
  6. Step 6: Final answer
    x = 7,753.80

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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.