Home / 12,269.49-18,403.29-4,371.71

Finding the Fourth Proportional to 12,269.49, 18,403.29 and 4,371.71

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Solution

The fourth proportional to 12,269.49, 18,403.29 and 4,371.71 is: 6,557.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.49 : 18,403.29 = 4,371.71 : x
  2. Step 2: Convert to fraction form
    12,269.49/18,403.29 = 4,371.71/x
  3. Step 3: Cross multiply
    12,269.49x = 18,403.29 × 4,371.71
  4. Step 4: Simplify right side
    12,269.49x = 80,453,754.91
  5. Step 5: Solve for x
    x = 80,453,754.91/12,269.49
  6. Step 6: Final answer
    x = 6,557.22

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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.