Home / 12,521.76-17,279.37-6,855.42

Finding the Fourth Proportional to 12,521.76, 17,279.37 and 6,855.42

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Solution

The fourth proportional to 12,521.76, 17,279.37 and 6,855.42 is: 9,460.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.76 : 17,279.37 = 6,855.42 : x
  2. Step 2: Convert to fraction form
    12,521.76/17,279.37 = 6,855.42/x
  3. Step 3: Cross multiply
    12,521.76x = 17,279.37 × 6,855.42
  4. Step 4: Simplify right side
    12,521.76x = 118,457,338.69
  5. Step 5: Solve for x
    x = 118,457,338.69/12,521.76
  6. Step 6: Final answer
    x = 9,460.12

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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.