Home / 15,470.25-21,348.37-8,396.52

Finding the Fourth Proportional to 15,470.25, 21,348.37 and 8,396.52

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Solution

The fourth proportional to 15,470.25, 21,348.37 and 8,396.52 is: 11,586.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.25 : 21,348.37 = 8,396.52 : x
  2. Step 2: Convert to fraction form
    15,470.25/21,348.37 = 8,396.52/x
  3. Step 3: Cross multiply
    15,470.25x = 21,348.37 × 8,396.52
  4. Step 4: Simplify right side
    15,470.25x = 179,252,017.96
  5. Step 5: Solve for x
    x = 179,252,017.96/15,470.25
  6. Step 6: Final answer
    x = 11,586.89

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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.