Home / 13,817.28-20,717.52-6,217.20

Finding the Fourth Proportional to 13,817.28, 20,717.52 and 6,217.20

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Solution

The fourth proportional to 13,817.28, 20,717.52 and 6,217.20 is: 9,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.28 : 20,717.52 = 6,217.20 : x
  2. Step 2: Convert to fraction form
    13,817.28/20,717.52 = 6,217.20/x
  3. Step 3: Cross multiply
    13,817.28x = 20,717.52 × 6,217.20
  4. Step 4: Simplify right side
    13,817.28x = 128,804,965.34
  5. Step 5: Solve for x
    x = 128,804,965.34/13,817.28
  6. Step 6: Final answer
    x = 9,322.02

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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.