Home / 11,380.06-15,705.48-6,601.78

Finding the Fourth Proportional to 11,380.06, 15,705.48 and 6,601.78

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Solution

The fourth proportional to 11,380.06, 15,705.48 and 6,601.78 is: 9,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.06 : 15,705.48 = 6,601.78 : x
  2. Step 2: Convert to fraction form
    11,380.06/15,705.48 = 6,601.78/x
  3. Step 3: Cross multiply
    11,380.06x = 15,705.48 × 6,601.78
  4. Step 4: Simplify right side
    11,380.06x = 103,684,123.75
  5. Step 5: Solve for x
    x = 103,684,123.75/11,380.06
  6. Step 6: Final answer
    x = 9,111.03

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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.