Home / 12,895.80-19,345.70-5,500.24

Finding the Fourth Proportional to 12,895.80, 19,345.70 and 5,500.24

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Solution

The fourth proportional to 12,895.80, 19,345.70 and 5,500.24 is: 8,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.80 : 19,345.70 = 5,500.24 : x
  2. Step 2: Convert to fraction form
    12,895.80/19,345.70 = 5,500.24/x
  3. Step 3: Cross multiply
    12,895.80x = 19,345.70 × 5,500.24
  4. Step 4: Simplify right side
    12,895.80x = 106,405,992.97
  5. Step 5: Solve for x
    x = 106,405,992.97/12,895.80
  6. Step 6: Final answer
    x = 8,251.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.