Home / 12,404.84-18,607.32-3,640.23

Finding the Fourth Proportional to 12,404.84, 18,607.32 and 3,640.23

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Solution

The fourth proportional to 12,404.84, 18,607.32 and 3,640.23 is: 5,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.84 : 18,607.32 = 3,640.23 : x
  2. Step 2: Convert to fraction form
    12,404.84/18,607.32 = 3,640.23/x
  3. Step 3: Cross multiply
    12,404.84x = 18,607.32 × 3,640.23
  4. Step 4: Simplify right side
    12,404.84x = 67,734,924.48
  5. Step 5: Solve for x
    x = 67,734,924.48/12,404.84
  6. Step 6: Final answer
    x = 5,460.36

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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.