Home / 8,138.81-12,207.98-2,592.47

Finding the Fourth Proportional to 8,138.81, 12,207.98 and 2,592.47

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Solution

The fourth proportional to 8,138.81, 12,207.98 and 2,592.47 is: 3,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.81 : 12,207.98 = 2,592.47 : x
  2. Step 2: Convert to fraction form
    8,138.81/12,207.98 = 2,592.47/x
  3. Step 3: Cross multiply
    8,138.81x = 12,207.98 × 2,592.47
  4. Step 4: Simplify right side
    8,138.81x = 31,648,858.91
  5. Step 5: Solve for x
    x = 31,648,858.91/8,138.81
  6. Step 6: Final answer
    x = 3,888.63

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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.