Home / 11,458.15-17,187.23-3,138.23

Finding the Fourth Proportional to 11,458.15, 17,187.23 and 3,138.23

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Solution

The fourth proportional to 11,458.15, 17,187.23 and 3,138.23 is: 4,707.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,458.15 : 17,187.23 = 3,138.23 : x
  2. Step 2: Convert to fraction form
    11,458.15/17,187.23 = 3,138.23/x
  3. Step 3: Cross multiply
    11,458.15x = 17,187.23 × 3,138.23
  4. Step 4: Simplify right side
    11,458.15x = 53,937,531.62
  5. Step 5: Solve for x
    x = 53,937,531.62/11,458.15
  6. Step 6: Final answer
    x = 4,707.35

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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.