Home / 15,739.26-21,719.52-9,020.22

Finding the Fourth Proportional to 15,739.26, 21,719.52 and 9,020.22

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Solution

The fourth proportional to 15,739.26, 21,719.52 and 9,020.22 is: 12,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.26 : 21,719.52 = 9,020.22 : x
  2. Step 2: Convert to fraction form
    15,739.26/21,719.52 = 9,020.22/x
  3. Step 3: Cross multiply
    15,739.26x = 21,719.52 × 9,020.22
  4. Step 4: Simplify right side
    15,739.26x = 195,914,848.69
  5. Step 5: Solve for x
    x = 195,914,848.69/15,739.26
  6. Step 6: Final answer
    x = 12,447.53

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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.