Home / 11,007.20-15,172.44-8,645.24

Finding the Fourth Proportional to 11,007.20, 15,172.44 and 8,645.24

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Solution

The fourth proportional to 11,007.20, 15,172.44 and 8,645.24 is: 11,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.20 : 15,172.44 = 8,645.24 : x
  2. Step 2: Convert to fraction form
    11,007.20/15,172.44 = 8,645.24/x
  3. Step 3: Cross multiply
    11,007.20x = 15,172.44 × 8,645.24
  4. Step 4: Simplify right side
    11,007.20x = 131,169,385.19
  5. Step 5: Solve for x
    x = 131,169,385.19/11,007.20
  6. Step 6: Final answer
    x = 11,916.69

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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.