Home / 12,101.91-18,148.25-4,705.39

Finding the Fourth Proportional to 12,101.91, 18,148.25 and 4,705.39

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Solution

The fourth proportional to 12,101.91, 18,148.25 and 4,705.39 is: 7,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.91 : 18,148.25 = 4,705.39 : x
  2. Step 2: Convert to fraction form
    12,101.91/18,148.25 = 4,705.39/x
  3. Step 3: Cross multiply
    12,101.91x = 18,148.25 × 4,705.39
  4. Step 4: Simplify right side
    12,101.91x = 85,394,628.52
  5. Step 5: Solve for x
    x = 85,394,628.52/12,101.91
  6. Step 6: Final answer
    x = 7,056.30

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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.