Home / 13,301.36-18,355.75-7,251.60

Finding the Fourth Proportional to 13,301.36, 18,355.75 and 7,251.60

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Solution

The fourth proportional to 13,301.36, 18,355.75 and 7,251.60 is: 10,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.36 : 18,355.75 = 7,251.60 : x
  2. Step 2: Convert to fraction form
    13,301.36/18,355.75 = 7,251.60/x
  3. Step 3: Cross multiply
    13,301.36x = 18,355.75 × 7,251.60
  4. Step 4: Simplify right side
    13,301.36x = 133,108,538.57
  5. Step 5: Solve for x
    x = 133,108,538.57/13,301.36
  6. Step 6: Final answer
    x = 10,007.14

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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.