Home / 9,930.35-13,704.12-5,454.20

Finding the Fourth Proportional to 9,930.35, 13,704.12 and 5,454.20

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Solution

The fourth proportional to 9,930.35, 13,704.12 and 5,454.20 is: 7,526.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.35 : 13,704.12 = 5,454.20 : x
  2. Step 2: Convert to fraction form
    9,930.35/13,704.12 = 5,454.20/x
  3. Step 3: Cross multiply
    9,930.35x = 13,704.12 × 5,454.20
  4. Step 4: Simplify right side
    9,930.35x = 74,745,024.94
  5. Step 5: Solve for x
    x = 74,745,024.94/9,930.35
  6. Step 6: Final answer
    x = 7,526.93

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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.