Home / 13,522.28-20,284.14-4,168.72

Finding the Fourth Proportional to 13,522.28, 20,284.14 and 4,168.72

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Solution

The fourth proportional to 13,522.28, 20,284.14 and 4,168.72 is: 6,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.28 : 20,284.14 = 4,168.72 : x
  2. Step 2: Convert to fraction form
    13,522.28/20,284.14 = 4,168.72/x
  3. Step 3: Cross multiply
    13,522.28x = 20,284.14 × 4,168.72
  4. Step 4: Simplify right side
    13,522.28x = 84,558,900.10
  5. Step 5: Solve for x
    x = 84,558,900.10/13,522.28
  6. Step 6: Final answer
    x = 6,253.30

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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.