Home / 13,347.84-20,021.69-3,486.90

Finding the Fourth Proportional to 13,347.84, 20,021.69 and 3,486.90

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Solution

The fourth proportional to 13,347.84, 20,021.69 and 3,486.90 is: 5,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.84 : 20,021.69 = 3,486.90 : x
  2. Step 2: Convert to fraction form
    13,347.84/20,021.69 = 3,486.90/x
  3. Step 3: Cross multiply
    13,347.84x = 20,021.69 × 3,486.90
  4. Step 4: Simplify right side
    13,347.84x = 69,813,613.43
  5. Step 5: Solve for x
    x = 69,813,613.43/13,347.84
  6. Step 6: Final answer
    x = 5,230.33

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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.