Home / 14,689.09-20,269.61-8,401.33

Finding the Fourth Proportional to 14,689.09, 20,269.61 and 8,401.33

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Solution

The fourth proportional to 14,689.09, 20,269.61 and 8,401.33 is: 11,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.09 : 20,269.61 = 8,401.33 : x
  2. Step 2: Convert to fraction form
    14,689.09/20,269.61 = 8,401.33/x
  3. Step 3: Cross multiply
    14,689.09x = 20,269.61 × 8,401.33
  4. Step 4: Simplify right side
    14,689.09x = 170,291,640.57
  5. Step 5: Solve for x
    x = 170,291,640.57/14,689.09
  6. Step 6: Final answer
    x = 11,593.07

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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.