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Finding the Fourth Proportional to 11,307.71, 15,604.62 and 6,339.71

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Solution

The fourth proportional to 11,307.71, 15,604.62 and 6,339.71 is: 8,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.71 : 15,604.62 = 6,339.71 : x
  2. Step 2: Convert to fraction form
    11,307.71/15,604.62 = 6,339.71/x
  3. Step 3: Cross multiply
    11,307.71x = 15,604.62 × 6,339.71
  4. Step 4: Simplify right side
    11,307.71x = 98,928,765.46
  5. Step 5: Solve for x
    x = 98,928,765.46/11,307.71
  6. Step 6: Final answer
    x = 8,748.79

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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.