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Finding the Fourth Proportional to 11,109, 15,332.24 and 6,392.36

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Solution

The fourth proportional to 11,109, 15,332.24 and 6,392.36 is: 8,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109 : 15,332.24 = 6,392.36 : x
  2. Step 2: Convert to fraction form
    11,109/15,332.24 = 6,392.36/x
  3. Step 3: Cross multiply
    11,109x = 15,332.24 × 6,392.36
  4. Step 4: Simplify right side
    11,109x = 98,009,197.69
  5. Step 5: Solve for x
    x = 98,009,197.69/11,109
  6. Step 6: Final answer
    x = 8,822.50

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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.