Home / 18,811.02-28,179.92-10,465.74

Finding the Fourth Proportional to 18,811.02, 28,179.92 and 10,465.74

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Solution

The fourth proportional to 18,811.02, 28,179.92 and 10,465.74 is: 15,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.02 : 28,179.92 = 10,465.74 : x
  2. Step 2: Convert to fraction form
    18,811.02/28,179.92 = 10,465.74/x
  3. Step 3: Cross multiply
    18,811.02x = 28,179.92 × 10,465.74
  4. Step 4: Simplify right side
    18,811.02x = 294,923,663.61
  5. Step 5: Solve for x
    x = 294,923,663.61/18,811.02
  6. Step 6: Final answer
    x = 15,678.24

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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.