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Finding the Fourth Proportional to 8,471.26, 11,690.13 and 4,935.16

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Solution

The fourth proportional to 8,471.26, 11,690.13 and 4,935.16 is: 6,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.26 : 11,690.13 = 4,935.16 : x
  2. Step 2: Convert to fraction form
    8,471.26/11,690.13 = 4,935.16/x
  3. Step 3: Cross multiply
    8,471.26x = 11,690.13 × 4,935.16
  4. Step 4: Simplify right side
    8,471.26x = 57,692,661.97
  5. Step 5: Solve for x
    x = 57,692,661.97/8,471.26
  6. Step 6: Final answer
    x = 6,810.40

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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.