Home / 14,215.45-19,618.28-8,247.12

Finding the Fourth Proportional to 14,215.45, 19,618.28 and 8,247.12

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Solution

The fourth proportional to 14,215.45, 19,618.28 and 8,247.12 is: 11,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.45 : 19,618.28 = 8,247.12 : x
  2. Step 2: Convert to fraction form
    14,215.45/19,618.28 = 8,247.12/x
  3. Step 3: Cross multiply
    14,215.45x = 19,618.28 × 8,247.12
  4. Step 4: Simplify right side
    14,215.45x = 161,794,202.28
  5. Step 5: Solve for x
    x = 161,794,202.28/14,215.45
  6. Step 6: Final answer
    x = 11,381.58

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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.