Home / 13,351.57-18,425.07-7,383.02

Finding the Fourth Proportional to 13,351.57, 18,425.07 and 7,383.02

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Solution

The fourth proportional to 13,351.57, 18,425.07 and 7,383.02 is: 10,188.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.57 : 18,425.07 = 7,383.02 : x
  2. Step 2: Convert to fraction form
    13,351.57/18,425.07 = 7,383.02/x
  3. Step 3: Cross multiply
    13,351.57x = 18,425.07 × 7,383.02
  4. Step 4: Simplify right side
    13,351.57x = 136,032,568.19
  5. Step 5: Solve for x
    x = 136,032,568.19/13,351.57
  6. Step 6: Final answer
    x = 10,188.51

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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.