Home / 13,391.10-20,085.03-3,531.12

Finding the Fourth Proportional to 13,391.10, 20,085.03 and 3,531.12

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Solution

The fourth proportional to 13,391.10, 20,085.03 and 3,531.12 is: 5,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.10 : 20,085.03 = 3,531.12 : x
  2. Step 2: Convert to fraction form
    13,391.10/20,085.03 = 3,531.12/x
  3. Step 3: Cross multiply
    13,391.10x = 20,085.03 × 3,531.12
  4. Step 4: Simplify right side
    13,391.10x = 70,922,651.13
  5. Step 5: Solve for x
    x = 70,922,651.13/13,391.10
  6. Step 6: Final answer
    x = 5,296.25

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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.