Home / 13,088.88-18,067.92-8,899.68

Finding the Fourth Proportional to 13,088.88, 18,067.92 and 8,899.68

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Solution

The fourth proportional to 13,088.88, 18,067.92 and 8,899.68 is: 12,285.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.88 : 18,067.92 = 8,899.68 : x
  2. Step 2: Convert to fraction form
    13,088.88/18,067.92 = 8,899.68/x
  3. Step 3: Cross multiply
    13,088.88x = 18,067.92 × 8,899.68
  4. Step 4: Simplify right side
    13,088.88x = 160,798,706.27
  5. Step 5: Solve for x
    x = 160,798,706.27/13,088.88
  6. Step 6: Final answer
    x = 12,285.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.