Home / 10,405.65-15,608.02-3,009.95

Finding the Fourth Proportional to 10,405.65, 15,608.02 and 3,009.95

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Solution

The fourth proportional to 10,405.65, 15,608.02 and 3,009.95 is: 4,514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.65 : 15,608.02 = 3,009.95 : x
  2. Step 2: Convert to fraction form
    10,405.65/15,608.02 = 3,009.95/x
  3. Step 3: Cross multiply
    10,405.65x = 15,608.02 × 3,009.95
  4. Step 4: Simplify right side
    10,405.65x = 46,979,359.80
  5. Step 5: Solve for x
    x = 46,979,359.80/10,405.65
  6. Step 6: Final answer
    x = 4,514.79

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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.