Home / 15,440.80-21,308.31-8,367.19

Finding the Fourth Proportional to 15,440.80, 21,308.31 and 8,367.19

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Solution

The fourth proportional to 15,440.80, 21,308.31 and 8,367.19 is: 11,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.80 : 21,308.31 = 8,367.19 : x
  2. Step 2: Convert to fraction form
    15,440.80/21,308.31 = 8,367.19/x
  3. Step 3: Cross multiply
    15,440.80x = 21,308.31 × 8,367.19
  4. Step 4: Simplify right side
    15,440.80x = 178,290,678.35
  5. Step 5: Solve for x
    x = 178,290,678.35/15,440.80
  6. Step 6: Final answer
    x = 11,546.73

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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.