Home / 14,219.06-19,622.04-8,251.28

Finding the Fourth Proportional to 14,219.06, 19,622.04 and 8,251.28

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Solution

The fourth proportional to 14,219.06, 19,622.04 and 8,251.28 is: 11,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.06 : 19,622.04 = 8,251.28 : x
  2. Step 2: Convert to fraction form
    14,219.06/19,622.04 = 8,251.28/x
  3. Step 3: Cross multiply
    14,219.06x = 19,622.04 × 8,251.28
  4. Step 4: Simplify right side
    14,219.06x = 161,906,946.21
  5. Step 5: Solve for x
    x = 161,906,946.21/14,219.06
  6. Step 6: Final answer
    x = 11,386.61

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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.