Home / 13,740.03-18,961.20-7,452.36

Finding the Fourth Proportional to 13,740.03, 18,961.20 and 7,452.36

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Solution

The fourth proportional to 13,740.03, 18,961.20 and 7,452.36 is: 10,284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.03 : 18,961.20 = 7,452.36 : x
  2. Step 2: Convert to fraction form
    13,740.03/18,961.20 = 7,452.36/x
  3. Step 3: Cross multiply
    13,740.03x = 18,961.20 × 7,452.36
  4. Step 4: Simplify right side
    13,740.03x = 141,305,688.43
  5. Step 5: Solve for x
    x = 141,305,688.43/13,740.03
  6. Step 6: Final answer
    x = 10,284.23

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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.