Home / 18,730.56-28,099.95-7,043.78

Finding the Fourth Proportional to 18,730.56, 28,099.95 and 7,043.78

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Solution

The fourth proportional to 18,730.56, 28,099.95 and 7,043.78 is: 10,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.56 : 28,099.95 = 7,043.78 : x
  2. Step 2: Convert to fraction form
    18,730.56/28,099.95 = 7,043.78/x
  3. Step 3: Cross multiply
    18,730.56x = 28,099.95 × 7,043.78
  4. Step 4: Simplify right side
    18,730.56x = 197,929,690.09
  5. Step 5: Solve for x
    x = 197,929,690.09/18,730.56
  6. Step 6: Final answer
    x = 10,567.21

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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.