Home / 15,382.04-21,227.30-8,667.77

Finding the Fourth Proportional to 15,382.04, 21,227.30 and 8,667.77

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Solution

The fourth proportional to 15,382.04, 21,227.30 and 8,667.77 is: 11,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.04 : 21,227.30 = 8,667.77 : x
  2. Step 2: Convert to fraction form
    15,382.04/21,227.30 = 8,667.77/x
  3. Step 3: Cross multiply
    15,382.04x = 21,227.30 × 8,667.77
  4. Step 4: Simplify right side
    15,382.04x = 183,993,204.65
  5. Step 5: Solve for x
    x = 183,993,204.65/15,382.04
  6. Step 6: Final answer
    x = 11,961.56

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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.