Home / 18,834.16-28,258.68-7,150.48

Finding the Fourth Proportional to 18,834.16, 28,258.68 and 7,150.48

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Solution

The fourth proportional to 18,834.16, 28,258.68 and 7,150.48 is: 10,728.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.16 : 28,258.68 = 7,150.48 : x
  2. Step 2: Convert to fraction form
    18,834.16/28,258.68 = 7,150.48/x
  3. Step 3: Cross multiply
    18,834.16x = 28,258.68 × 7,150.48
  4. Step 4: Simplify right side
    18,834.16x = 202,063,126.17
  5. Step 5: Solve for x
    x = 202,063,126.17/18,834.16
  6. Step 6: Final answer
    x = 10,728.54

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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.