Home / 11,140-15,373.20-6,663.94

Finding the Fourth Proportional to 11,140, 15,373.20 and 6,663.94

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Solution

The fourth proportional to 11,140, 15,373.20 and 6,663.94 is: 9,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140 : 15,373.20 = 6,663.94 : x
  2. Step 2: Convert to fraction form
    11,140/15,373.20 = 6,663.94/x
  3. Step 3: Cross multiply
    11,140x = 15,373.20 × 6,663.94
  4. Step 4: Simplify right side
    11,140x = 102,446,082.41
  5. Step 5: Solve for x
    x = 102,446,082.41/11,140
  6. Step 6: Final answer
    x = 9,196.24

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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.