Home / 15,028.79-20,739.35-8,314.26

Finding the Fourth Proportional to 15,028.79, 20,739.35 and 8,314.26

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Solution

The fourth proportional to 15,028.79, 20,739.35 and 8,314.26 is: 11,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.79 : 20,739.35 = 8,314.26 : x
  2. Step 2: Convert to fraction form
    15,028.79/20,739.35 = 8,314.26/x
  3. Step 3: Cross multiply
    15,028.79x = 20,739.35 × 8,314.26
  4. Step 4: Simplify right side
    15,028.79x = 172,432,306.56
  5. Step 5: Solve for x
    x = 172,432,306.56/15,028.79
  6. Step 6: Final answer
    x = 11,473.47

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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.