Home / 15,470.31-21,349.03-8,396.73

Finding the Fourth Proportional to 15,470.31, 21,349.03 and 8,396.73

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Solution

The fourth proportional to 15,470.31, 21,349.03 and 8,396.73 is: 11,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.31 : 21,349.03 = 8,396.73 : x
  2. Step 2: Convert to fraction form
    15,470.31/21,349.03 = 8,396.73/x
  3. Step 3: Cross multiply
    15,470.31x = 21,349.03 × 8,396.73
  4. Step 4: Simplify right side
    15,470.31x = 179,262,040.67
  5. Step 5: Solve for x
    x = 179,262,040.67/15,470.31
  6. Step 6: Final answer
    x = 11,587.49

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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.