Home / 13,330.44-18,398.37-7,664.75

Finding the Fourth Proportional to 13,330.44, 18,398.37 and 7,664.75

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Solution

The fourth proportional to 13,330.44, 18,398.37 and 7,664.75 is: 10,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.44 : 18,398.37 = 7,664.75 : x
  2. Step 2: Convert to fraction form
    13,330.44/18,398.37 = 7,664.75/x
  3. Step 3: Cross multiply
    13,330.44x = 18,398.37 × 7,664.75
  4. Step 4: Simplify right side
    13,330.44x = 141,018,889.20
  5. Step 5: Solve for x
    x = 141,018,889.20/13,330.44
  6. Step 6: Final answer
    x = 10,578.71

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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.