Home / 18,977.73-28,460.52-8,981.12

Finding the Fourth Proportional to 18,977.73, 28,460.52 and 8,981.12

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Solution

The fourth proportional to 18,977.73, 28,460.52 and 8,981.12 is: 13,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.73 : 28,460.52 = 8,981.12 : x
  2. Step 2: Convert to fraction form
    18,977.73/28,460.52 = 8,981.12/x
  3. Step 3: Cross multiply
    18,977.73x = 28,460.52 × 8,981.12
  4. Step 4: Simplify right side
    18,977.73x = 255,607,203.08
  5. Step 5: Solve for x
    x = 255,607,203.08/18,977.73
  6. Step 6: Final answer
    x = 13,468.80

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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.