Home / 28,186.62-42,276.57-7,411.74

Finding the Fourth Proportional to 28,186.62, 42,276.57 and 7,411.74

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Solution

The fourth proportional to 28,186.62, 42,276.57 and 7,411.74 is: 11,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.62 : 42,276.57 = 7,411.74 : x
  2. Step 2: Convert to fraction form
    28,186.62/42,276.57 = 7,411.74/x
  3. Step 3: Cross multiply
    28,186.62x = 42,276.57 × 7,411.74
  4. Step 4: Simplify right side
    28,186.62x = 313,342,944.93
  5. Step 5: Solve for x
    x = 313,342,944.93/28,186.62
  6. Step 6: Final answer
    x = 11,116.73

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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.