Home / 16,215.72-22,376.35-9,143.88

Finding the Fourth Proportional to 16,215.72, 22,376.35 and 9,143.88

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Solution

The fourth proportional to 16,215.72, 22,376.35 and 9,143.88 is: 12,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.72 : 22,376.35 = 9,143.88 : x
  2. Step 2: Convert to fraction form
    16,215.72/22,376.35 = 9,143.88/x
  3. Step 3: Cross multiply
    16,215.72x = 22,376.35 × 9,143.88
  4. Step 4: Simplify right side
    16,215.72x = 204,606,659.24
  5. Step 5: Solve for x
    x = 204,606,659.24/16,215.72
  6. Step 6: Final answer
    x = 12,617.80

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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.