Home / 11,612.70-17,428.78-8,852.22

Finding the Fourth Proportional to 11,612.70, 17,428.78 and 8,852.22

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Solution

The fourth proportional to 11,612.70, 17,428.78 and 8,852.22 is: 13,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.70 : 17,428.78 = 8,852.22 : x
  2. Step 2: Convert to fraction form
    11,612.70/17,428.78 = 8,852.22/x
  3. Step 3: Cross multiply
    11,612.70x = 17,428.78 × 8,852.22
  4. Step 4: Simplify right side
    11,612.70x = 154,283,394.89
  5. Step 5: Solve for x
    x = 154,283,394.89/11,612.70
  6. Step 6: Final answer
    x = 13,285.75

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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.