Home / 11,346.98-15,660.18-6,869.90

Finding the Fourth Proportional to 11,346.98, 15,660.18 and 6,869.90

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Solution

The fourth proportional to 11,346.98, 15,660.18 and 6,869.90 is: 9,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346.98 : 15,660.18 = 6,869.90 : x
  2. Step 2: Convert to fraction form
    11,346.98/15,660.18 = 6,869.90/x
  3. Step 3: Cross multiply
    11,346.98x = 15,660.18 × 6,869.90
  4. Step 4: Simplify right side
    11,346.98x = 107,583,792.28
  5. Step 5: Solve for x
    x = 107,583,792.28/11,346.98
  6. Step 6: Final answer
    x = 9,481.28

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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.