Home / 15,632.28-21,573.60-8,919.24

Finding the Fourth Proportional to 15,632.28, 21,573.60 and 8,919.24

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Solution

The fourth proportional to 15,632.28, 21,573.60 and 8,919.24 is: 12,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,632.28 : 21,573.60 = 8,919.24 : x
  2. Step 2: Convert to fraction form
    15,632.28/21,573.60 = 8,919.24/x
  3. Step 3: Cross multiply
    15,632.28x = 21,573.60 × 8,919.24
  4. Step 4: Simplify right side
    15,632.28x = 192,420,116.06
  5. Step 5: Solve for x
    x = 192,420,116.06/15,632.28
  6. Step 6: Final answer
    x = 12,309.15

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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.