Home / 16,321.40-22,523.30-9,151.28

Finding the Fourth Proportional to 16,321.40, 22,523.30 and 9,151.28

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Solution

The fourth proportional to 16,321.40, 22,523.30 and 9,151.28 is: 12,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,321.40 : 22,523.30 = 9,151.28 : x
  2. Step 2: Convert to fraction form
    16,321.40/22,523.30 = 9,151.28/x
  3. Step 3: Cross multiply
    16,321.40x = 22,523.30 × 9,151.28
  4. Step 4: Simplify right side
    16,321.40x = 206,116,985.23
  5. Step 5: Solve for x
    x = 206,116,985.23/16,321.40
  6. Step 6: Final answer
    x = 12,628.63

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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.