Home / 7,681.36-11,522.86-2,134.72

Finding the Fourth Proportional to 7,681.36, 11,522.86 and 2,134.72

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Solution

The fourth proportional to 7,681.36, 11,522.86 and 2,134.72 is: 3,202.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.36 : 11,522.86 = 2,134.72 : x
  2. Step 2: Convert to fraction form
    7,681.36/11,522.86 = 2,134.72/x
  3. Step 3: Cross multiply
    7,681.36x = 11,522.86 × 2,134.72
  4. Step 4: Simplify right side
    7,681.36x = 24,598,079.70
  5. Step 5: Solve for x
    x = 24,598,079.70/7,681.36
  6. Step 6: Final answer
    x = 3,202.31

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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.