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Finding the Fourth Proportional to 11,293.76, 15,551.52 and 9,427.52

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Solution

The fourth proportional to 11,293.76, 15,551.52 and 9,427.52 is: 12,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.76 : 15,551.52 = 9,427.52 : x
  2. Step 2: Convert to fraction form
    11,293.76/15,551.52 = 9,427.52/x
  3. Step 3: Cross multiply
    11,293.76x = 15,551.52 × 9,427.52
  4. Step 4: Simplify right side
    11,293.76x = 146,612,265.83
  5. Step 5: Solve for x
    x = 146,612,265.83/11,293.76
  6. Step 6: Final answer
    x = 12,981.71

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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.