Home / 18,865.10-28,297.55-4,825.10

Finding the Fourth Proportional to 18,865.10, 28,297.55 and 4,825.10

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Solution

The fourth proportional to 18,865.10, 28,297.55 and 4,825.10 is: 7,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.10 : 28,297.55 = 4,825.10 : x
  2. Step 2: Convert to fraction form
    18,865.10/28,297.55 = 4,825.10/x
  3. Step 3: Cross multiply
    18,865.10x = 28,297.55 × 4,825.10
  4. Step 4: Simplify right side
    18,865.10x = 136,538,484.38
  5. Step 5: Solve for x
    x = 136,538,484.38/18,865.10
  6. Step 6: Final answer
    x = 7,237.62

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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.