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Finding the Fourth Proportional to 11,176, 15,435.84 and 7,443.52

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Solution

The fourth proportional to 11,176, 15,435.84 and 7,443.52 is: 10,280.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176 : 15,435.84 = 7,443.52 : x
  2. Step 2: Convert to fraction form
    11,176/15,435.84 = 7,443.52/x
  3. Step 3: Cross multiply
    11,176x = 15,435.84 × 7,443.52
  4. Step 4: Simplify right side
    11,176x = 114,896,983.76
  5. Step 5: Solve for x
    x = 114,896,983.76/11,176
  6. Step 6: Final answer
    x = 10,280.69

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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.