Home / 9,091.39-13,637.10-3,900.91

Finding the Fourth Proportional to 9,091.39, 13,637.10 and 3,900.91

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Solution

The fourth proportional to 9,091.39, 13,637.10 and 3,900.91 is: 5,851.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.39 : 13,637.10 = 3,900.91 : x
  2. Step 2: Convert to fraction form
    9,091.39/13,637.10 = 3,900.91/x
  3. Step 3: Cross multiply
    9,091.39x = 13,637.10 × 3,900.91
  4. Step 4: Simplify right side
    9,091.39x = 53,197,099.76
  5. Step 5: Solve for x
    x = 53,197,099.76/9,091.39
  6. Step 6: Final answer
    x = 5,851.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.