Home / 16,215.70-22,377.63-9,142.08

Finding the Fourth Proportional to 16,215.70, 22,377.63 and 9,142.08

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Solution

The fourth proportional to 16,215.70, 22,377.63 and 9,142.08 is: 12,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.70 : 22,377.63 = 9,142.08 : x
  2. Step 2: Convert to fraction form
    16,215.70/22,377.63 = 9,142.08/x
  3. Step 3: Cross multiply
    16,215.70x = 22,377.63 × 9,142.08
  4. Step 4: Simplify right side
    16,215.70x = 204,578,021.63
  5. Step 5: Solve for x
    x = 204,578,021.63/16,215.70
  6. Step 6: Final answer
    x = 12,616.04

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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.