Home / 13,372.29-18,456.86-8,896.23

Finding the Fourth Proportional to 13,372.29, 18,456.86 and 8,896.23

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Solution

The fourth proportional to 13,372.29, 18,456.86 and 8,896.23 is: 12,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.29 : 18,456.86 = 8,896.23 : x
  2. Step 2: Convert to fraction form
    13,372.29/18,456.86 = 8,896.23/x
  3. Step 3: Cross multiply
    13,372.29x = 18,456.86 × 8,896.23
  4. Step 4: Simplify right side
    13,372.29x = 164,196,427.16
  5. Step 5: Solve for x
    x = 164,196,427.16/13,372.29
  6. Step 6: Final answer
    x = 12,278.86

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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.