Home / 18,965.52-28,450.14-5,815.62

Finding the Fourth Proportional to 18,965.52, 28,450.14 and 5,815.62

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Solution

The fourth proportional to 18,965.52, 28,450.14 and 5,815.62 is: 8,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.52 : 28,450.14 = 5,815.62 : x
  2. Step 2: Convert to fraction form
    18,965.52/28,450.14 = 5,815.62/x
  3. Step 3: Cross multiply
    18,965.52x = 28,450.14 × 5,815.62
  4. Step 4: Simplify right side
    18,965.52x = 165,455,203.19
  5. Step 5: Solve for x
    x = 165,455,203.19/18,965.52
  6. Step 6: Final answer
    x = 8,724.00

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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.