Home / 18,962.30-28,447.59-5,815.69

Finding the Fourth Proportional to 18,962.30, 28,447.59 and 5,815.69

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Solution

The fourth proportional to 18,962.30, 28,447.59 and 5,815.69 is: 8,724.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.30 : 28,447.59 = 5,815.69 : x
  2. Step 2: Convert to fraction form
    18,962.30/28,447.59 = 5,815.69/x
  3. Step 3: Cross multiply
    18,962.30x = 28,447.59 × 5,815.69
  4. Step 4: Simplify right side
    18,962.30x = 165,442,364.69
  5. Step 5: Solve for x
    x = 165,442,364.69/18,962.30
  6. Step 6: Final answer
    x = 8,724.80

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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.