Home / 12,883.21-19,299.65-8,879.87

Finding the Fourth Proportional to 12,883.21, 19,299.65 and 8,879.87

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Solution

The fourth proportional to 12,883.21, 19,299.65 and 8,879.87 is: 13,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.21 : 19,299.65 = 8,879.87 : x
  2. Step 2: Convert to fraction form
    12,883.21/19,299.65 = 8,879.87/x
  3. Step 3: Cross multiply
    12,883.21x = 19,299.65 × 8,879.87
  4. Step 4: Simplify right side
    12,883.21x = 171,378,386.90
  5. Step 5: Solve for x
    x = 171,378,386.90/12,883.21
  6. Step 6: Final answer
    x = 13,302.46

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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.