Home / 13,626.24-18,780.30-13,247.16

Finding the Fourth Proportional to 13,626.24, 18,780.30 and 13,247.16

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Solution

The fourth proportional to 13,626.24, 18,780.30 and 13,247.16 is: 18,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.24 : 18,780.30 = 13,247.16 : x
  2. Step 2: Convert to fraction form
    13,626.24/18,780.30 = 13,247.16/x
  3. Step 3: Cross multiply
    13,626.24x = 18,780.30 × 13,247.16
  4. Step 4: Simplify right side
    13,626.24x = 248,785,638.95
  5. Step 5: Solve for x
    x = 248,785,638.95/13,626.24
  6. Step 6: Final answer
    x = 18,257.83

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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.