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Finding the Fourth Proportional to 11,665.56, 17,480.07 and 4,641.78

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Solution

The fourth proportional to 11,665.56, 17,480.07 and 4,641.78 is: 6,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.56 : 17,480.07 = 4,641.78 : x
  2. Step 2: Convert to fraction form
    11,665.56/17,480.07 = 4,641.78/x
  3. Step 3: Cross multiply
    11,665.56x = 17,480.07 × 4,641.78
  4. Step 4: Simplify right side
    11,665.56x = 81,138,639.32
  5. Step 5: Solve for x
    x = 81,138,639.32/11,665.56
  6. Step 6: Final answer
    x = 6,955.40

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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.