Home / 25,869.12-38,786.40-8,093.76

Finding the Fourth Proportional to 25,869.12, 38,786.40 and 8,093.76

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Solution

The fourth proportional to 25,869.12, 38,786.40 and 8,093.76 is: 12,135.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869.12 : 38,786.40 = 8,093.76 : x
  2. Step 2: Convert to fraction form
    25,869.12/38,786.40 = 8,093.76/x
  3. Step 3: Cross multiply
    25,869.12x = 38,786.40 × 8,093.76
  4. Step 4: Simplify right side
    25,869.12x = 313,927,812.86
  5. Step 5: Solve for x
    x = 313,927,812.86/25,869.12
  6. Step 6: Final answer
    x = 12,135.23

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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.