Home / 18,957.19-28,414.60-7,099.55

Finding the Fourth Proportional to 18,957.19, 28,414.60 and 7,099.55

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Solution

The fourth proportional to 18,957.19, 28,414.60 and 7,099.55 is: 10,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.19 : 28,414.60 = 7,099.55 : x
  2. Step 2: Convert to fraction form
    18,957.19/28,414.60 = 7,099.55/x
  3. Step 3: Cross multiply
    18,957.19x = 28,414.60 × 7,099.55
  4. Step 4: Simplify right side
    18,957.19x = 201,730,820.16
  5. Step 5: Solve for x
    x = 201,730,820.16/18,957.19
  6. Step 6: Final answer
    x = 10,641.39

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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.