Home / 15,842.12-21,867-9,132.24

Finding the Fourth Proportional to 15,842.12, 21,867 and 9,132.24

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Solution

The fourth proportional to 15,842.12, 21,867 and 9,132.24 is: 12,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.12 : 21,867 = 9,132.24 : x
  2. Step 2: Convert to fraction form
    15,842.12/21,867 = 9,132.24/x
  3. Step 3: Cross multiply
    15,842.12x = 21,867 × 9,132.24
  4. Step 4: Simplify right side
    15,842.12x = 199,694,582.75
  5. Step 5: Solve for x
    x = 199,694,582.75/15,842.12
  6. Step 6: Final answer
    x = 12,605.29

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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.