Home / 13,408.73-18,504.91-7,440.41

Finding the Fourth Proportional to 13,408.73, 18,504.91 and 7,440.41

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Solution

The fourth proportional to 13,408.73, 18,504.91 and 7,440.41 is: 10,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.73 : 18,504.91 = 7,440.41 : x
  2. Step 2: Convert to fraction form
    13,408.73/18,504.91 = 7,440.41/x
  3. Step 3: Cross multiply
    13,408.73x = 18,504.91 × 7,440.41
  4. Step 4: Simplify right side
    13,408.73x = 137,684,126.71
  5. Step 5: Solve for x
    x = 137,684,126.71/13,408.73
  6. Step 6: Final answer
    x = 10,268.25

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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.