Home / 18,811.53-28,206.50-5,660.01

Finding the Fourth Proportional to 18,811.53, 28,206.50 and 5,660.01

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Solution

The fourth proportional to 18,811.53, 28,206.50 and 5,660.01 is: 8,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.53 : 28,206.50 = 5,660.01 : x
  2. Step 2: Convert to fraction form
    18,811.53/28,206.50 = 5,660.01/x
  3. Step 3: Cross multiply
    18,811.53x = 28,206.50 × 5,660.01
  4. Step 4: Simplify right side
    18,811.53x = 159,649,043.76
  5. Step 5: Solve for x
    x = 159,649,043.76/18,811.53
  6. Step 6: Final answer
    x = 8,486.77

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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.