Home / 10,012.80-15,010.56-4,811.52

Finding the Fourth Proportional to 10,012.80, 15,010.56 and 4,811.52

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Solution

The fourth proportional to 10,012.80, 15,010.56 and 4,811.52 is: 7,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.80 : 15,010.56 = 4,811.52 : x
  2. Step 2: Convert to fraction form
    10,012.80/15,010.56 = 4,811.52/x
  3. Step 3: Cross multiply
    10,012.80x = 15,010.56 × 4,811.52
  4. Step 4: Simplify right side
    10,012.80x = 72,223,609.65
  5. Step 5: Solve for x
    x = 72,223,609.65/10,012.80
  6. Step 6: Final answer
    x = 7,213.13

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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.