Home / 15,544.17-21,450.33-8,470.44

Finding the Fourth Proportional to 15,544.17, 21,450.33 and 8,470.44

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Solution

The fourth proportional to 15,544.17, 21,450.33 and 8,470.44 is: 11,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.17 : 21,450.33 = 8,470.44 : x
  2. Step 2: Convert to fraction form
    15,544.17/21,450.33 = 8,470.44/x
  3. Step 3: Cross multiply
    15,544.17x = 21,450.33 × 8,470.44
  4. Step 4: Simplify right side
    15,544.17x = 181,693,733.25
  5. Step 5: Solve for x
    x = 181,693,733.25/15,544.17
  6. Step 6: Final answer
    x = 11,688.87

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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.