Home / 11,355.53-17,035.11-5,117.72

Finding the Fourth Proportional to 11,355.53, 17,035.11 and 5,117.72

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Solution

The fourth proportional to 11,355.53, 17,035.11 and 5,117.72 is: 7,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.53 : 17,035.11 = 5,117.72 : x
  2. Step 2: Convert to fraction form
    11,355.53/17,035.11 = 5,117.72/x
  3. Step 3: Cross multiply
    11,355.53x = 17,035.11 × 5,117.72
  4. Step 4: Simplify right side
    11,355.53x = 87,180,837.97
  5. Step 5: Solve for x
    x = 87,180,837.97/11,355.53
  6. Step 6: Final answer
    x = 7,677.39

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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.