Home / 13,291.54-18,343.36-7,324.28

Finding the Fourth Proportional to 13,291.54, 18,343.36 and 7,324.28

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Solution

The fourth proportional to 13,291.54, 18,343.36 and 7,324.28 is: 10,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.54 : 18,343.36 = 7,324.28 : x
  2. Step 2: Convert to fraction form
    13,291.54/18,343.36 = 7,324.28/x
  3. Step 3: Cross multiply
    13,291.54x = 18,343.36 × 7,324.28
  4. Step 4: Simplify right side
    13,291.54x = 134,351,891.01
  5. Step 5: Solve for x
    x = 134,351,891.01/13,291.54
  6. Step 6: Final answer
    x = 10,108.08

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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.