Home / 9,279.90-13,922.28-4,086.99

Finding the Fourth Proportional to 9,279.90, 13,922.28 and 4,086.99

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Solution

The fourth proportional to 9,279.90, 13,922.28 and 4,086.99 is: 6,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.90 : 13,922.28 = 4,086.99 : x
  2. Step 2: Convert to fraction form
    9,279.90/13,922.28 = 4,086.99/x
  3. Step 3: Cross multiply
    9,279.90x = 13,922.28 × 4,086.99
  4. Step 4: Simplify right side
    9,279.90x = 56,900,219.14
  5. Step 5: Solve for x
    x = 56,900,219.14/9,279.90
  6. Step 6: Final answer
    x = 6,131.56

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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.