Home / 18,966.78-28,450.02-4,926.78

Finding the Fourth Proportional to 18,966.78, 28,450.02 and 4,926.78

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Solution

The fourth proportional to 18,966.78, 28,450.02 and 4,926.78 is: 7,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.78 : 28,450.02 = 4,926.78 : x
  2. Step 2: Convert to fraction form
    18,966.78/28,450.02 = 4,926.78/x
  3. Step 3: Cross multiply
    18,966.78x = 28,450.02 × 4,926.78
  4. Step 4: Simplify right side
    18,966.78x = 140,166,989.54
  5. Step 5: Solve for x
    x = 140,166,989.54/18,966.78
  6. Step 6: Final answer
    x = 7,390.13

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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.