Home / 13,726.34-20,617.06-8,190.48

Finding the Fourth Proportional to 13,726.34, 20,617.06 and 8,190.48

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Solution

The fourth proportional to 13,726.34, 20,617.06 and 8,190.48 is: 12,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.34 : 20,617.06 = 8,190.48 : x
  2. Step 2: Convert to fraction form
    13,726.34/20,617.06 = 8,190.48/x
  3. Step 3: Cross multiply
    13,726.34x = 20,617.06 × 8,190.48
  4. Step 4: Simplify right side
    13,726.34x = 168,863,617.59
  5. Step 5: Solve for x
    x = 168,863,617.59/13,726.34
  6. Step 6: Final answer
    x = 12,302.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.