Home / 18,801.17-28,201.85-5,653.45

Finding the Fourth Proportional to 18,801.17, 28,201.85 and 5,653.45

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Solution

The fourth proportional to 18,801.17, 28,201.85 and 5,653.45 is: 8,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.17 : 28,201.85 = 5,653.45 : x
  2. Step 2: Convert to fraction form
    18,801.17/28,201.85 = 5,653.45/x
  3. Step 3: Cross multiply
    18,801.17x = 28,201.85 × 5,653.45
  4. Step 4: Simplify right side
    18,801.17x = 159,437,748.88
  5. Step 5: Solve for x
    x = 159,437,748.88/18,801.17
  6. Step 6: Final answer
    x = 8,480.20

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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.