Home / 11,123.76-15,350.78-6,932

Finding the Fourth Proportional to 11,123.76, 15,350.78 and 6,932

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Solution

The fourth proportional to 11,123.76, 15,350.78 and 6,932 is: 9,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.76 : 15,350.78 = 6,932 : x
  2. Step 2: Convert to fraction form
    11,123.76/15,350.78 = 6,932/x
  3. Step 3: Cross multiply
    11,123.76x = 15,350.78 × 6,932
  4. Step 4: Simplify right side
    11,123.76x = 106,411,606.96
  5. Step 5: Solve for x
    x = 106,411,606.96/11,123.76
  6. Step 6: Final answer
    x = 9,566.15

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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.