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Finding the Fourth Proportional to 18,329.20, 27,501.60 and 8,977.60

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Solution

The fourth proportional to 18,329.20, 27,501.60 and 8,977.60 is: 13,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.20 : 27,501.60 = 8,977.60 : x
  2. Step 2: Convert to fraction form
    18,329.20/27,501.60 = 8,977.60/x
  3. Step 3: Cross multiply
    18,329.20x = 27,501.60 × 8,977.60
  4. Step 4: Simplify right side
    18,329.20x = 246,898,364.16
  5. Step 5: Solve for x
    x = 246,898,364.16/18,329.20
  6. Step 6: Final answer
    x = 13,470.22

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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.