Home / 8,975.39-12,384.62-5,198.91

Finding the Fourth Proportional to 8,975.39, 12,384.62 and 5,198.91

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Solution

The fourth proportional to 8,975.39, 12,384.62 and 5,198.91 is: 7,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.39 : 12,384.62 = 5,198.91 : x
  2. Step 2: Convert to fraction form
    8,975.39/12,384.62 = 5,198.91/x
  3. Step 3: Cross multiply
    8,975.39x = 12,384.62 × 5,198.91
  4. Step 4: Simplify right side
    8,975.39x = 64,386,524.76
  5. Step 5: Solve for x
    x = 64,386,524.76/8,975.39
  6. Step 6: Final answer
    x = 7,173.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.