Home / 13,410.44-18,505.86-7,442.36

Finding the Fourth Proportional to 13,410.44, 18,505.86 and 7,442.36

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Solution

The fourth proportional to 13,410.44, 18,505.86 and 7,442.36 is: 10,270.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.44 : 18,505.86 = 7,442.36 : x
  2. Step 2: Convert to fraction form
    13,410.44/18,505.86 = 7,442.36/x
  3. Step 3: Cross multiply
    13,410.44x = 18,505.86 × 7,442.36
  4. Step 4: Simplify right side
    13,410.44x = 137,727,272.23
  5. Step 5: Solve for x
    x = 137,727,272.23/13,410.44
  6. Step 6: Final answer
    x = 10,270.15

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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.