Home / 18,730.31-28,099.65-7,043.63

Finding the Fourth Proportional to 18,730.31, 28,099.65 and 7,043.63

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Solution

The fourth proportional to 18,730.31, 28,099.65 and 7,043.63 is: 10,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.31 : 28,099.65 = 7,043.63 : x
  2. Step 2: Convert to fraction form
    18,730.31/28,099.65 = 7,043.63/x
  3. Step 3: Cross multiply
    18,730.31x = 28,099.65 × 7,043.63
  4. Step 4: Simplify right side
    18,730.31x = 197,923,537.73
  5. Step 5: Solve for x
    x = 197,923,537.73/18,730.31
  6. Step 6: Final answer
    x = 10,567.02

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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.