Home / 10,545.12-15,816.30-2,754.54

Finding the Fourth Proportional to 10,545.12, 15,816.30 and 2,754.54

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Solution

The fourth proportional to 10,545.12, 15,816.30 and 2,754.54 is: 4,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.12 : 15,816.30 = 2,754.54 : x
  2. Step 2: Convert to fraction form
    10,545.12/15,816.30 = 2,754.54/x
  3. Step 3: Cross multiply
    10,545.12x = 15,816.30 × 2,754.54
  4. Step 4: Simplify right side
    10,545.12x = 43,566,631.00
  5. Step 5: Solve for x
    x = 43,566,631.00/10,545.12
  6. Step 6: Final answer
    x = 4,131.45

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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.