Home / 18,907.02-28,364.85-5,759.64

Finding the Fourth Proportional to 18,907.02, 28,364.85 and 5,759.64

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Solution

The fourth proportional to 18,907.02, 28,364.85 and 5,759.64 is: 8,640.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.02 : 28,364.85 = 5,759.64 : x
  2. Step 2: Convert to fraction form
    18,907.02/28,364.85 = 5,759.64/x
  3. Step 3: Cross multiply
    18,907.02x = 28,364.85 × 5,759.64
  4. Step 4: Simplify right side
    18,907.02x = 163,371,324.65
  5. Step 5: Solve for x
    x = 163,371,324.65/18,907.02
  6. Step 6: Final answer
    x = 8,640.78

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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.