Home / 15,048.15-20,769.92-10,012.58

Finding the Fourth Proportional to 15,048.15, 20,769.92 and 10,012.58

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Solution

The fourth proportional to 15,048.15, 20,769.92 and 10,012.58 is: 13,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.15 : 20,769.92 = 10,012.58 : x
  2. Step 2: Convert to fraction form
    15,048.15/20,769.92 = 10,012.58/x
  3. Step 3: Cross multiply
    15,048.15x = 20,769.92 × 10,012.58
  4. Step 4: Simplify right side
    15,048.15x = 207,960,331.68
  5. Step 5: Solve for x
    x = 207,960,331.68/15,048.15
  6. Step 6: Final answer
    x = 13,819.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.