Home / 13,213.29-18,224.68-8,436.52

Finding the Fourth Proportional to 13,213.29, 18,224.68 and 8,436.52

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Solution

The fourth proportional to 13,213.29, 18,224.68 and 8,436.52 is: 11,636.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.29 : 18,224.68 = 8,436.52 : x
  2. Step 2: Convert to fraction form
    13,213.29/18,224.68 = 8,436.52/x
  3. Step 3: Cross multiply
    13,213.29x = 18,224.68 × 8,436.52
  4. Step 4: Simplify right side
    13,213.29x = 153,752,744.01
  5. Step 5: Solve for x
    x = 153,752,744.01/13,213.29
  6. Step 6: Final answer
    x = 11,636.22

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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.