Home / 18,977.07-28,466.65-7,884.88

Finding the Fourth Proportional to 18,977.07, 28,466.65 and 7,884.88

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Solution

The fourth proportional to 18,977.07, 28,466.65 and 7,884.88 is: 11,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.07 : 28,466.65 = 7,884.88 : x
  2. Step 2: Convert to fraction form
    18,977.07/28,466.65 = 7,884.88/x
  3. Step 3: Cross multiply
    18,977.07x = 28,466.65 × 7,884.88
  4. Step 4: Simplify right side
    18,977.07x = 224,456,218.07
  5. Step 5: Solve for x
    x = 224,456,218.07/18,977.07
  6. Step 6: Final answer
    x = 11,827.76

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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.