Home / 15,539.46-21,443.70-8,824.20

Finding the Fourth Proportional to 15,539.46, 21,443.70 and 8,824.20

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Solution

The fourth proportional to 15,539.46, 21,443.70 and 8,824.20 is: 12,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.46 : 21,443.70 = 8,824.20 : x
  2. Step 2: Convert to fraction form
    15,539.46/21,443.70 = 8,824.20/x
  3. Step 3: Cross multiply
    15,539.46x = 21,443.70 × 8,824.20
  4. Step 4: Simplify right side
    15,539.46x = 189,223,450.22
  5. Step 5: Solve for x
    x = 189,223,450.22/15,539.46
  6. Step 6: Final answer
    x = 12,176.97

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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.