Home / 12,883.67-19,332.80-5,487.36

Finding the Fourth Proportional to 12,883.67, 19,332.80 and 5,487.36

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Solution

The fourth proportional to 12,883.67, 19,332.80 and 5,487.36 is: 8,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.67 : 19,332.80 = 5,487.36 : x
  2. Step 2: Convert to fraction form
    12,883.67/19,332.80 = 5,487.36/x
  3. Step 3: Cross multiply
    12,883.67x = 19,332.80 × 5,487.36
  4. Step 4: Simplify right side
    12,883.67x = 106,086,033.41
  5. Step 5: Solve for x
    x = 106,086,033.41/12,883.67
  6. Step 6: Final answer
    x = 8,234.15

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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.