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Finding the Fourth Proportional to 6,761.60, 9,337.40 and 6,393.46

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Solution

The fourth proportional to 6,761.60, 9,337.40 and 6,393.46 is: 8,829.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.60 : 9,337.40 = 6,393.46 : x
  2. Step 2: Convert to fraction form
    6,761.60/9,337.40 = 6,393.46/x
  3. Step 3: Cross multiply
    6,761.60x = 9,337.40 × 6,393.46
  4. Step 4: Simplify right side
    6,761.60x = 59,698,214.75
  5. Step 5: Solve for x
    x = 59,698,214.75/6,761.60
  6. Step 6: Final answer
    x = 8,829.01

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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.