Home / 19,286.15-28,940.15-7,607.57

Finding the Fourth Proportional to 19,286.15, 28,940.15 and 7,607.57

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Solution

The fourth proportional to 19,286.15, 28,940.15 and 7,607.57 is: 11,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.15 : 28,940.15 = 7,607.57 : x
  2. Step 2: Convert to fraction form
    19,286.15/28,940.15 = 7,607.57/x
  3. Step 3: Cross multiply
    19,286.15x = 28,940.15 × 7,607.57
  4. Step 4: Simplify right side
    19,286.15x = 220,164,034.20
  5. Step 5: Solve for x
    x = 220,164,034.20/19,286.15
  6. Step 6: Final answer
    x = 11,415.66

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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.