Home / 10,686.36-16,027.38-8,949.72

Finding the Fourth Proportional to 10,686.36, 16,027.38 and 8,949.72

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Solution

The fourth proportional to 10,686.36, 16,027.38 and 8,949.72 is: 13,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.36 : 16,027.38 = 8,949.72 : x
  2. Step 2: Convert to fraction form
    10,686.36/16,027.38 = 8,949.72/x
  3. Step 3: Cross multiply
    10,686.36x = 16,027.38 × 8,949.72
  4. Step 4: Simplify right side
    10,686.36x = 143,440,563.33
  5. Step 5: Solve for x
    x = 143,440,563.33/10,686.36
  6. Step 6: Final answer
    x = 13,422.77

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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.