Home / 10,875.01-15,016.66-8,181.56

Finding the Fourth Proportional to 10,875.01, 15,016.66 and 8,181.56

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Solution

The fourth proportional to 10,875.01, 15,016.66 and 8,181.56 is: 11,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.01 : 15,016.66 = 8,181.56 : x
  2. Step 2: Convert to fraction form
    10,875.01/15,016.66 = 8,181.56/x
  3. Step 3: Cross multiply
    10,875.01x = 15,016.66 × 8,181.56
  4. Step 4: Simplify right side
    10,875.01x = 122,859,705.99
  5. Step 5: Solve for x
    x = 122,859,705.99/10,875.01
  6. Step 6: Final answer
    x = 11,297.43

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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.