Home / 18,921.25-28,385.52-8,533

Finding the Fourth Proportional to 18,921.25, 28,385.52 and 8,533

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Solution

The fourth proportional to 18,921.25, 28,385.52 and 8,533 is: 12,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.25 : 28,385.52 = 8,533 : x
  2. Step 2: Convert to fraction form
    18,921.25/28,385.52 = 8,533/x
  3. Step 3: Cross multiply
    18,921.25x = 28,385.52 × 8,533
  4. Step 4: Simplify right side
    18,921.25x = 242,213,642.16
  5. Step 5: Solve for x
    x = 242,213,642.16/18,921.25
  6. Step 6: Final answer
    x = 12,801.14

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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.