Home / 10,506.84-15,759.30-6,121.56

Finding the Fourth Proportional to 10,506.84, 15,759.30 and 6,121.56

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Solution

The fourth proportional to 10,506.84, 15,759.30 and 6,121.56 is: 9,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.84 : 15,759.30 = 6,121.56 : x
  2. Step 2: Convert to fraction form
    10,506.84/15,759.30 = 6,121.56/x
  3. Step 3: Cross multiply
    10,506.84x = 15,759.30 × 6,121.56
  4. Step 4: Simplify right side
    10,506.84x = 96,471,500.51
  5. Step 5: Solve for x
    x = 96,471,500.51/10,506.84
  6. Step 6: Final answer
    x = 9,181.78

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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.