Home / 16,261.20-22,440.36-8,809.20

Finding the Fourth Proportional to 16,261.20, 22,440.36 and 8,809.20

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Solution

The fourth proportional to 16,261.20, 22,440.36 and 8,809.20 is: 12,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,261.20 : 22,440.36 = 8,809.20 : x
  2. Step 2: Convert to fraction form
    16,261.20/22,440.36 = 8,809.20/x
  3. Step 3: Cross multiply
    16,261.20x = 22,440.36 × 8,809.20
  4. Step 4: Simplify right side
    16,261.20x = 197,681,619.31
  5. Step 5: Solve for x
    x = 197,681,619.31/16,261.20
  6. Step 6: Final answer
    x = 12,156.64

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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.