Home / 15,470.62-21,348.84-8,396.92

Finding the Fourth Proportional to 15,470.62, 21,348.84 and 8,396.92

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Solution

The fourth proportional to 15,470.62, 21,348.84 and 8,396.92 is: 11,587.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.62 : 21,348.84 = 8,396.92 : x
  2. Step 2: Convert to fraction form
    15,470.62/21,348.84 = 8,396.92/x
  3. Step 3: Cross multiply
    15,470.62x = 21,348.84 × 8,396.92
  4. Step 4: Simplify right side
    15,470.62x = 179,264,501.57
  5. Step 5: Solve for x
    x = 179,264,501.57/15,470.62
  6. Step 6: Final answer
    x = 11,587.42

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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.