Home / 15,305.11-21,121.04-8,592.91

Finding the Fourth Proportional to 15,305.11, 21,121.04 and 8,592.91

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Solution

The fourth proportional to 15,305.11, 21,121.04 and 8,592.91 is: 11,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.11 : 21,121.04 = 8,592.91 : x
  2. Step 2: Convert to fraction form
    15,305.11/21,121.04 = 8,592.91/x
  3. Step 3: Cross multiply
    15,305.11x = 21,121.04 × 8,592.91
  4. Step 4: Simplify right side
    15,305.11x = 181,491,164.51
  5. Step 5: Solve for x
    x = 181,491,164.51/15,305.11
  6. Step 6: Final answer
    x = 11,858.21

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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.