Home / 15,592.32-21,517.72-8,519.20

Finding the Fourth Proportional to 15,592.32, 21,517.72 and 8,519.20

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Solution

The fourth proportional to 15,592.32, 21,517.72 and 8,519.20 is: 11,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.32 : 21,517.72 = 8,519.20 : x
  2. Step 2: Convert to fraction form
    15,592.32/21,517.72 = 8,519.20/x
  3. Step 3: Cross multiply
    15,592.32x = 21,517.72 × 8,519.20
  4. Step 4: Simplify right side
    15,592.32x = 183,313,685.13
  5. Step 5: Solve for x
    x = 183,313,685.13/15,592.32
  6. Step 6: Final answer
    x = 11,756.67

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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.