Home / 16,213.19-22,374.23-9,139.59

Finding the Fourth Proportional to 16,213.19, 22,374.23 and 9,139.59

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Solution

The fourth proportional to 16,213.19, 22,374.23 and 9,139.59 is: 12,612.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,213.19 : 22,374.23 = 9,139.59 : x
  2. Step 2: Convert to fraction form
    16,213.19/22,374.23 = 9,139.59/x
  3. Step 3: Cross multiply
    16,213.19x = 22,374.23 × 9,139.59
  4. Step 4: Simplify right side
    16,213.19x = 204,491,243.07
  5. Step 5: Solve for x
    x = 204,491,243.07/16,213.19
  6. Step 6: Final answer
    x = 12,612.65

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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.