Home / 9,902.18-13,660.61-6,364.73

Finding the Fourth Proportional to 9,902.18, 13,660.61 and 6,364.73

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Solution

The fourth proportional to 9,902.18, 13,660.61 and 6,364.73 is: 8,780.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.18 : 13,660.61 = 6,364.73 : x
  2. Step 2: Convert to fraction form
    9,902.18/13,660.61 = 6,364.73/x
  3. Step 3: Cross multiply
    9,902.18x = 13,660.61 × 6,364.73
  4. Step 4: Simplify right side
    9,902.18x = 86,945,994.16
  5. Step 5: Solve for x
    x = 86,945,994.16/9,902.18
  6. Step 6: Final answer
    x = 8,780.49

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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.