Home / 10,678.06-15,976.92-10,115.50

Finding the Fourth Proportional to 10,678.06, 15,976.92 and 10,115.50

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Solution

The fourth proportional to 10,678.06, 15,976.92 and 10,115.50 is: 15,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.06 : 15,976.92 = 10,115.50 : x
  2. Step 2: Convert to fraction form
    10,678.06/15,976.92 = 10,115.50/x
  3. Step 3: Cross multiply
    10,678.06x = 15,976.92 × 10,115.50
  4. Step 4: Simplify right side
    10,678.06x = 161,614,534.26
  5. Step 5: Solve for x
    x = 161,614,534.26/10,678.06
  6. Step 6: Final answer
    x = 15,135.20

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1.5x scale

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.