Home / 13,911.12-20,867.97-4,551.20

Finding the Fourth Proportional to 13,911.12, 20,867.97 and 4,551.20

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Solution

The fourth proportional to 13,911.12, 20,867.97 and 4,551.20 is: 6,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.12 : 20,867.97 = 4,551.20 : x
  2. Step 2: Convert to fraction form
    13,911.12/20,867.97 = 4,551.20/x
  3. Step 3: Cross multiply
    13,911.12x = 20,867.97 × 4,551.20
  4. Step 4: Simplify right side
    13,911.12x = 94,974,296.05
  5. Step 5: Solve for x
    x = 94,974,296.05/13,911.12
  6. Step 6: Final answer
    x = 6,827.22

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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.