Home / 11,289.97-15,580.32-6,509.82

Finding the Fourth Proportional to 11,289.97, 15,580.32 and 6,509.82

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Solution

The fourth proportional to 11,289.97, 15,580.32 and 6,509.82 is: 8,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.97 : 15,580.32 = 6,509.82 : x
  2. Step 2: Convert to fraction form
    11,289.97/15,580.32 = 6,509.82/x
  3. Step 3: Cross multiply
    11,289.97x = 15,580.32 × 6,509.82
  4. Step 4: Simplify right side
    11,289.97x = 101,425,046.19
  5. Step 5: Solve for x
    x = 101,425,046.19/11,289.97
  6. Step 6: Final answer
    x = 8,983.65

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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.