Home / 15,470.96-21,350.38-8,397.84

Finding the Fourth Proportional to 15,470.96, 21,350.38 and 8,397.84

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Solution

The fourth proportional to 15,470.96, 21,350.38 and 8,397.84 is: 11,589.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.96 : 21,350.38 = 8,397.84 : x
  2. Step 2: Convert to fraction form
    15,470.96/21,350.38 = 8,397.84/x
  3. Step 3: Cross multiply
    15,470.96x = 21,350.38 × 8,397.84
  4. Step 4: Simplify right side
    15,470.96x = 179,297,075.18
  5. Step 5: Solve for x
    x = 179,297,075.18/15,470.96
  6. Step 6: Final answer
    x = 11,589.27

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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.