Home / 16,215.91-22,377.93-9,142.33

Finding the Fourth Proportional to 16,215.91, 22,377.93 and 9,142.33

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Solution

The fourth proportional to 16,215.91, 22,377.93 and 9,142.33 is: 12,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.91 : 22,377.93 = 9,142.33 : x
  2. Step 2: Convert to fraction form
    16,215.91/22,377.93 = 9,142.33/x
  3. Step 3: Cross multiply
    16,215.91x = 22,377.93 × 9,142.33
  4. Step 4: Simplify right side
    16,215.91x = 204,586,468.26
  5. Step 5: Solve for x
    x = 204,586,468.26/16,215.91
  6. Step 6: Final answer
    x = 12,616.40

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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.