Home / 14,748.15-20,378.36-11,788.41

Finding the Fourth Proportional to 14,748.15, 20,378.36 and 11,788.41

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Solution

The fourth proportional to 14,748.15, 20,378.36 and 11,788.41 is: 16,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,748.15 : 20,378.36 = 11,788.41 : x
  2. Step 2: Convert to fraction form
    14,748.15/20,378.36 = 11,788.41/x
  3. Step 3: Cross multiply
    14,748.15x = 20,378.36 × 11,788.41
  4. Step 4: Simplify right side
    14,748.15x = 240,228,403.87
  5. Step 5: Solve for x
    x = 240,228,403.87/14,748.15
  6. Step 6: Final answer
    x = 16,288.71

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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.