Home / 13,408.04-18,505.31-7,441.62

Finding the Fourth Proportional to 13,408.04, 18,505.31 and 7,441.62

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Solution

The fourth proportional to 13,408.04, 18,505.31 and 7,441.62 is: 10,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.04 : 18,505.31 = 7,441.62 : x
  2. Step 2: Convert to fraction form
    13,408.04/18,505.31 = 7,441.62/x
  3. Step 3: Cross multiply
    13,408.04x = 18,505.31 × 7,441.62
  4. Step 4: Simplify right side
    13,408.04x = 137,709,485.00
  5. Step 5: Solve for x
    x = 137,709,485.00/13,408.04
  6. Step 6: Final answer
    x = 10,270.66

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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.