Home / 13,122.23-18,125.96-9,726.12

Finding the Fourth Proportional to 13,122.23, 18,125.96 and 9,726.12

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Solution

The fourth proportional to 13,122.23, 18,125.96 and 9,726.12 is: 13,434.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.23 : 18,125.96 = 9,726.12 : x
  2. Step 2: Convert to fraction form
    13,122.23/18,125.96 = 9,726.12/x
  3. Step 3: Cross multiply
    13,122.23x = 18,125.96 × 9,726.12
  4. Step 4: Simplify right side
    13,122.23x = 176,295,213.44
  5. Step 5: Solve for x
    x = 176,295,213.44/13,122.23
  6. Step 6: Final answer
    x = 13,434.86

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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.