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Finding the Fourth Proportional to 6,440.16, 8,932.86 and 6,269.40

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Solution

The fourth proportional to 6,440.16, 8,932.86 and 6,269.40 is: 8,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.16 : 8,932.86 = 6,269.40 : x
  2. Step 2: Convert to fraction form
    6,440.16/8,932.86 = 6,269.40/x
  3. Step 3: Cross multiply
    6,440.16x = 8,932.86 × 6,269.40
  4. Step 4: Simplify right side
    6,440.16x = 56,003,672.48
  5. Step 5: Solve for x
    x = 56,003,672.48/6,440.16
  6. Step 6: Final answer
    x = 8,696.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.