Home / 13,395.58-18,484.94-7,427.43

Finding the Fourth Proportional to 13,395.58, 18,484.94 and 7,427.43

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Solution

The fourth proportional to 13,395.58, 18,484.94 and 7,427.43 is: 10,249.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.58 : 18,484.94 = 7,427.43 : x
  2. Step 2: Convert to fraction form
    13,395.58/18,484.94 = 7,427.43/x
  3. Step 3: Cross multiply
    13,395.58x = 18,484.94 × 7,427.43
  4. Step 4: Simplify right side
    13,395.58x = 137,295,616.47
  5. Step 5: Solve for x
    x = 137,295,616.47/13,395.58
  6. Step 6: Final answer
    x = 10,249.32

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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.