Home / 11,931.24-17,881.74-6,740.04

Finding the Fourth Proportional to 11,931.24, 17,881.74 and 6,740.04

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Solution

The fourth proportional to 11,931.24, 17,881.74 and 6,740.04 is: 10,101.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.24 : 17,881.74 = 6,740.04 : x
  2. Step 2: Convert to fraction form
    11,931.24/17,881.74 = 6,740.04/x
  3. Step 3: Cross multiply
    11,931.24x = 17,881.74 × 6,740.04
  4. Step 4: Simplify right side
    11,931.24x = 120,523,642.87
  5. Step 5: Solve for x
    x = 120,523,642.87/11,931.24
  6. Step 6: Final answer
    x = 10,101.52

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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.