Home / 12,162.30-18,244.34-4,371.18

Finding the Fourth Proportional to 12,162.30, 18,244.34 and 4,371.18

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Solution

The fourth proportional to 12,162.30, 18,244.34 and 4,371.18 is: 6,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.30 : 18,244.34 = 4,371.18 : x
  2. Step 2: Convert to fraction form
    12,162.30/18,244.34 = 4,371.18/x
  3. Step 3: Cross multiply
    12,162.30x = 18,244.34 × 4,371.18
  4. Step 4: Simplify right side
    12,162.30x = 79,749,294.12
  5. Step 5: Solve for x
    x = 79,749,294.12/12,162.30
  6. Step 6: Final answer
    x = 6,557.09

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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.