Home / 10,878.36-15,012.42-6,162.96

Finding the Fourth Proportional to 10,878.36, 15,012.42 and 6,162.96

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Solution

The fourth proportional to 10,878.36, 15,012.42 and 6,162.96 is: 8,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.36 : 15,012.42 = 6,162.96 : x
  2. Step 2: Convert to fraction form
    10,878.36/15,012.42 = 6,162.96/x
  3. Step 3: Cross multiply
    10,878.36x = 15,012.42 × 6,162.96
  4. Step 4: Simplify right side
    10,878.36x = 92,520,943.96
  5. Step 5: Solve for x
    x = 92,520,943.96/10,878.36
  6. Step 6: Final answer
    x = 8,505.05

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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.