Home / 13,409.17-18,501.96-8,104.29

Finding the Fourth Proportional to 13,409.17, 18,501.96 and 8,104.29

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Solution

The fourth proportional to 13,409.17, 18,501.96 and 8,104.29 is: 11,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.17 : 18,501.96 = 8,104.29 : x
  2. Step 2: Convert to fraction form
    13,409.17/18,501.96 = 8,104.29/x
  3. Step 3: Cross multiply
    13,409.17x = 18,501.96 × 8,104.29
  4. Step 4: Simplify right side
    13,409.17x = 149,945,249.41
  5. Step 5: Solve for x
    x = 149,945,249.41/13,409.17
  6. Step 6: Final answer
    x = 11,182.29

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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.