Home / 12,369.54-18,557.04-3,605.13

Finding the Fourth Proportional to 12,369.54, 18,557.04 and 3,605.13

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Solution

The fourth proportional to 12,369.54, 18,557.04 and 3,605.13 is: 5,408.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.54 : 18,557.04 = 3,605.13 : x
  2. Step 2: Convert to fraction form
    12,369.54/18,557.04 = 3,605.13/x
  3. Step 3: Cross multiply
    12,369.54x = 18,557.04 × 3,605.13
  4. Step 4: Simplify right side
    12,369.54x = 66,900,581.98
  5. Step 5: Solve for x
    x = 66,900,581.98/12,369.54
  6. Step 6: Final answer
    x = 5,408.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.