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Finding the Fourth Proportional to 8,124.70, 11,212.06 and 4,398.70

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Solution

The fourth proportional to 8,124.70, 11,212.06 and 4,398.70 is: 6,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.70 : 11,212.06 = 4,398.70 : x
  2. Step 2: Convert to fraction form
    8,124.70/11,212.06 = 4,398.70/x
  3. Step 3: Cross multiply
    8,124.70x = 11,212.06 × 4,398.70
  4. Step 4: Simplify right side
    8,124.70x = 49,318,488.32
  5. Step 5: Solve for x
    x = 49,318,488.32/8,124.70
  6. Step 6: Final answer
    x = 6,070.19

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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.