Home / 16,215.36-22,377.28-9,141.92

Finding the Fourth Proportional to 16,215.36, 22,377.28 and 9,141.92

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Solution

The fourth proportional to 16,215.36, 22,377.28 and 9,141.92 is: 12,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.36 : 22,377.28 = 9,141.92 : x
  2. Step 2: Convert to fraction form
    16,215.36/22,377.28 = 9,141.92/x
  3. Step 3: Cross multiply
    16,215.36x = 22,377.28 × 9,141.92
  4. Step 4: Simplify right side
    16,215.36x = 204,571,303.58
  5. Step 5: Solve for x
    x = 204,571,303.58/16,215.36
  6. Step 6: Final answer
    x = 12,615.90

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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.