Home / 16,215.44-22,376.80-9,141.76

Finding the Fourth Proportional to 16,215.44, 22,376.80 and 9,141.76

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Solution

The fourth proportional to 16,215.44, 22,376.80 and 9,141.76 is: 12,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.44 : 22,376.80 = 9,141.76 : x
  2. Step 2: Convert to fraction form
    16,215.44/22,376.80 = 9,141.76/x
  3. Step 3: Cross multiply
    16,215.44x = 22,376.80 × 9,141.76
  4. Step 4: Simplify right side
    16,215.44x = 204,563,335.17
  5. Step 5: Solve for x
    x = 204,563,335.17/16,215.44
  6. Step 6: Final answer
    x = 12,615.34

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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.