Home / 14,774.06-20,388.21-8,486.44

Finding the Fourth Proportional to 14,774.06, 20,388.21 and 8,486.44

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Solution

The fourth proportional to 14,774.06, 20,388.21 and 8,486.44 is: 11,711.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.06 : 20,388.21 = 8,486.44 : x
  2. Step 2: Convert to fraction form
    14,774.06/20,388.21 = 8,486.44/x
  3. Step 3: Cross multiply
    14,774.06x = 20,388.21 × 8,486.44
  4. Step 4: Simplify right side
    14,774.06x = 173,023,238.08
  5. Step 5: Solve for x
    x = 173,023,238.08/14,774.06
  6. Step 6: Final answer
    x = 11,711.28

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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.