Home / 9,930.93-13,704.84-5,455.10

Finding the Fourth Proportional to 9,930.93, 13,704.84 and 5,455.10

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Solution

The fourth proportional to 9,930.93, 13,704.84 and 5,455.10 is: 7,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.93 : 13,704.84 = 5,455.10 : x
  2. Step 2: Convert to fraction form
    9,930.93/13,704.84 = 5,455.10/x
  3. Step 3: Cross multiply
    9,930.93x = 13,704.84 × 5,455.10
  4. Step 4: Simplify right side
    9,930.93x = 74,761,272.68
  5. Step 5: Solve for x
    x = 74,761,272.68/9,930.93
  6. Step 6: Final answer
    x = 7,528.12

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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.