Home / 9,942.57-13,720.68-5,466.21

Finding the Fourth Proportional to 9,942.57, 13,720.68 and 5,466.21

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Solution

The fourth proportional to 9,942.57, 13,720.68 and 5,466.21 is: 7,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.57 : 13,720.68 = 5,466.21 : x
  2. Step 2: Convert to fraction form
    9,942.57/13,720.68 = 5,466.21/x
  3. Step 3: Cross multiply
    9,942.57x = 13,720.68 × 5,466.21
  4. Step 4: Simplify right side
    9,942.57x = 75,000,118.22
  5. Step 5: Solve for x
    x = 75,000,118.22/9,942.57
  6. Step 6: Final answer
    x = 7,543.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.