Home / 9,930.20-13,703.72-5,454.36

Finding the Fourth Proportional to 9,930.20, 13,703.72 and 5,454.36

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Solution

The fourth proportional to 9,930.20, 13,703.72 and 5,454.36 is: 7,527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.20 : 13,703.72 = 5,454.36 : x
  2. Step 2: Convert to fraction form
    9,930.20/13,703.72 = 5,454.36/x
  3. Step 3: Cross multiply
    9,930.20x = 13,703.72 × 5,454.36
  4. Step 4: Simplify right side
    9,930.20x = 74,745,022.22
  5. Step 5: Solve for x
    x = 74,745,022.22/9,930.20
  6. Step 6: Final answer
    x = 7,527.04

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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.