Home / 8,506.13-12,759.19-3,315.65

Finding the Fourth Proportional to 8,506.13, 12,759.19 and 3,315.65

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Solution

The fourth proportional to 8,506.13, 12,759.19 and 3,315.65 is: 4,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.13 : 12,759.19 = 3,315.65 : x
  2. Step 2: Convert to fraction form
    8,506.13/12,759.19 = 3,315.65/x
  3. Step 3: Cross multiply
    8,506.13x = 12,759.19 × 3,315.65
  4. Step 4: Simplify right side
    8,506.13x = 42,304,936.24
  5. Step 5: Solve for x
    x = 42,304,936.24/8,506.13
  6. Step 6: Final answer
    x = 4,973.47

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Similar ratio
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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.