Home / 9,930.43-13,704.15-5,454.64

Finding the Fourth Proportional to 9,930.43, 13,704.15 and 5,454.64

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Solution

The fourth proportional to 9,930.43, 13,704.15 and 5,454.64 is: 7,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.43 : 13,704.15 = 5,454.64 : x
  2. Step 2: Convert to fraction form
    9,930.43/13,704.15 = 5,454.64/x
  3. Step 3: Cross multiply
    9,930.43x = 13,704.15 × 5,454.64
  4. Step 4: Simplify right side
    9,930.43x = 74,751,204.76
  5. Step 5: Solve for x
    x = 74,751,204.76/9,930.43
  6. Step 6: Final answer
    x = 7,527.49

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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.