Home / 18,839.06-28,258.58-7,152.28

Finding the Fourth Proportional to 18,839.06, 28,258.58 and 7,152.28

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Solution

The fourth proportional to 18,839.06, 28,258.58 and 7,152.28 is: 10,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.06 : 28,258.58 = 7,152.28 : x
  2. Step 2: Convert to fraction form
    18,839.06/28,258.58 = 7,152.28/x
  3. Step 3: Cross multiply
    18,839.06x = 28,258.58 × 7,152.28
  4. Step 4: Simplify right side
    18,839.06x = 202,113,223.80
  5. Step 5: Solve for x
    x = 202,113,223.80/18,839.06
  6. Step 6: Final answer
    x = 10,728.42

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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.