Home / 12,522.70-17,281.35-6,780.22

Finding the Fourth Proportional to 12,522.70, 17,281.35 and 6,780.22

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Solution

The fourth proportional to 12,522.70, 17,281.35 and 6,780.22 is: 9,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.70 : 17,281.35 = 6,780.22 : x
  2. Step 2: Convert to fraction form
    12,522.70/17,281.35 = 6,780.22/x
  3. Step 3: Cross multiply
    12,522.70x = 17,281.35 × 6,780.22
  4. Step 4: Simplify right side
    12,522.70x = 117,171,336.00
  5. Step 5: Solve for x
    x = 117,171,336.00/12,522.70
  6. Step 6: Final answer
    x = 9,356.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.