Home / 18,510.96-25,553.52-11,805.72

Finding the Fourth Proportional to 18,510.96, 25,553.52 and 11,805.72

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Solution

The fourth proportional to 18,510.96, 25,553.52 and 11,805.72 is: 16,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.96 : 25,553.52 = 11,805.72 : x
  2. Step 2: Convert to fraction form
    18,510.96/25,553.52 = 11,805.72/x
  3. Step 3: Cross multiply
    18,510.96x = 25,553.52 × 11,805.72
  4. Step 4: Simplify right side
    18,510.96x = 301,677,702.13
  5. Step 5: Solve for x
    x = 301,677,702.13/18,510.96
  6. Step 6: Final answer
    x = 16,297.25

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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.