Home / 12,603.12-18,904.68-3,369.12

Finding the Fourth Proportional to 12,603.12, 18,904.68 and 3,369.12

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Solution

The fourth proportional to 12,603.12, 18,904.68 and 3,369.12 is: 5,053.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.12 : 18,904.68 = 3,369.12 : x
  2. Step 2: Convert to fraction form
    12,603.12/18,904.68 = 3,369.12/x
  3. Step 3: Cross multiply
    12,603.12x = 18,904.68 × 3,369.12
  4. Step 4: Simplify right side
    12,603.12x = 63,692,135.48
  5. Step 5: Solve for x
    x = 63,692,135.48/12,603.12
  6. Step 6: Final answer
    x = 5,053.68

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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.