Home / 10,054.80-15,085.24-3,129.36

Finding the Fourth Proportional to 10,054.80, 15,085.24 and 3,129.36

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Solution

The fourth proportional to 10,054.80, 15,085.24 and 3,129.36 is: 4,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,054.80 : 15,085.24 = 3,129.36 : x
  2. Step 2: Convert to fraction form
    10,054.80/15,085.24 = 3,129.36/x
  3. Step 3: Cross multiply
    10,054.80x = 15,085.24 × 3,129.36
  4. Step 4: Simplify right side
    10,054.80x = 47,207,146.65
  5. Step 5: Solve for x
    x = 47,207,146.65/10,054.80
  6. Step 6: Final answer
    x = 4,694.99

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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.