Home / 8,261.73-12,368.30-5,131.71

Finding the Fourth Proportional to 8,261.73, 12,368.30 and 5,131.71

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Solution

The fourth proportional to 8,261.73, 12,368.30 and 5,131.71 is: 7,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.73 : 12,368.30 = 5,131.71 : x
  2. Step 2: Convert to fraction form
    8,261.73/12,368.30 = 5,131.71/x
  3. Step 3: Cross multiply
    8,261.73x = 12,368.30 × 5,131.71
  4. Step 4: Simplify right side
    8,261.73x = 63,470,503.13
  5. Step 5: Solve for x
    x = 63,470,503.13/8,261.73
  6. Step 6: Final answer
    x = 7,682.47

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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.