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Finding the Fourth Proportional to 11,507.78, 17,278.95 and 6,582.98

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Solution

The fourth proportional to 11,507.78, 17,278.95 and 6,582.98 is: 9,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.78 : 17,278.95 = 6,582.98 : x
  2. Step 2: Convert to fraction form
    11,507.78/17,278.95 = 6,582.98/x
  3. Step 3: Cross multiply
    11,507.78x = 17,278.95 × 6,582.98
  4. Step 4: Simplify right side
    11,507.78x = 113,746,982.27
  5. Step 5: Solve for x
    x = 113,746,982.27/11,507.78
  6. Step 6: Final answer
    x = 9,884.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.