Home / 10,908.20-16,362.30-9,612.20

Finding the Fourth Proportional to 10,908.20, 16,362.30 and 9,612.20

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Solution

The fourth proportional to 10,908.20, 16,362.30 and 9,612.20 is: 14,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.20 : 16,362.30 = 9,612.20 : x
  2. Step 2: Convert to fraction form
    10,908.20/16,362.30 = 9,612.20/x
  3. Step 3: Cross multiply
    10,908.20x = 16,362.30 × 9,612.20
  4. Step 4: Simplify right side
    10,908.20x = 157,277,700.06
  5. Step 5: Solve for x
    x = 157,277,700.06/10,908.20
  6. Step 6: Final answer
    x = 14,418.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.