Home / 18,766.79-28,146.08-6,288.58

Finding the Fourth Proportional to 18,766.79, 28,146.08 and 6,288.58

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Solution

The fourth proportional to 18,766.79, 28,146.08 and 6,288.58 is: 9,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.79 : 28,146.08 = 6,288.58 : x
  2. Step 2: Convert to fraction form
    18,766.79/28,146.08 = 6,288.58/x
  3. Step 3: Cross multiply
    18,766.79x = 28,146.08 × 6,288.58
  4. Step 4: Simplify right side
    18,766.79x = 176,998,844.32
  5. Step 5: Solve for x
    x = 176,998,844.32/18,766.79
  6. Step 6: Final answer
    x = 9,431.50

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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.