Home / 10,568.67-15,848.20-3,990.18

Finding the Fourth Proportional to 10,568.67, 15,848.20 and 3,990.18

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Solution

The fourth proportional to 10,568.67, 15,848.20 and 3,990.18 is: 5,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,568.67 : 15,848.20 = 3,990.18 : x
  2. Step 2: Convert to fraction form
    10,568.67/15,848.20 = 3,990.18/x
  3. Step 3: Cross multiply
    10,568.67x = 15,848.20 × 3,990.18
  4. Step 4: Simplify right side
    10,568.67x = 63,237,170.68
  5. Step 5: Solve for x
    x = 63,237,170.68/10,568.67
  6. Step 6: Final answer
    x = 5,983.46

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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.