Home / 7,681.86-11,522.97-2,487.69

Finding the Fourth Proportional to 7,681.86, 11,522.97 and 2,487.69

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Solution

The fourth proportional to 7,681.86, 11,522.97 and 2,487.69 is: 3,731.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.86 : 11,522.97 = 2,487.69 : x
  2. Step 2: Convert to fraction form
    7,681.86/11,522.97 = 2,487.69/x
  3. Step 3: Cross multiply
    7,681.86x = 11,522.97 × 2,487.69
  4. Step 4: Simplify right side
    7,681.86x = 28,665,577.24
  5. Step 5: Solve for x
    x = 28,665,577.24/7,681.86
  6. Step 6: Final answer
    x = 3,731.59

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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.