Home / 13,693.37-20,498.13-8,767.76

Finding the Fourth Proportional to 13,693.37, 20,498.13 and 8,767.76

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Solution

The fourth proportional to 13,693.37, 20,498.13 and 8,767.76 is: 13,124.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.37 : 20,498.13 = 8,767.76 : x
  2. Step 2: Convert to fraction form
    13,693.37/20,498.13 = 8,767.76/x
  3. Step 3: Cross multiply
    13,693.37x = 20,498.13 × 8,767.76
  4. Step 4: Simplify right side
    13,693.37x = 179,722,581.80
  5. Step 5: Solve for x
    x = 179,722,581.80/13,693.37
  6. Step 6: Final answer
    x = 13,124.79

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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.