Home / 11,088.36-15,307.92-8,815.23

Finding the Fourth Proportional to 11,088.36, 15,307.92 and 8,815.23

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Solution

The fourth proportional to 11,088.36, 15,307.92 and 8,815.23 is: 12,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,088.36 : 15,307.92 = 8,815.23 : x
  2. Step 2: Convert to fraction form
    11,088.36/15,307.92 = 8,815.23/x
  3. Step 3: Cross multiply
    11,088.36x = 15,307.92 × 8,815.23
  4. Step 4: Simplify right side
    11,088.36x = 134,942,835.62
  5. Step 5: Solve for x
    x = 134,942,835.62/11,088.36
  6. Step 6: Final answer
    x = 12,169.77

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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.