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Finding the Fourth Proportional to 8,454.71, 12,682.07 and 6,603.05

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Solution

The fourth proportional to 8,454.71, 12,682.07 and 6,603.05 is: 9,904.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.71 : 12,682.07 = 6,603.05 : x
  2. Step 2: Convert to fraction form
    8,454.71/12,682.07 = 6,603.05/x
  3. Step 3: Cross multiply
    8,454.71x = 12,682.07 × 6,603.05
  4. Step 4: Simplify right side
    8,454.71x = 83,740,342.31
  5. Step 5: Solve for x
    x = 83,740,342.31/8,454.71
  6. Step 6: Final answer
    x = 9,904.58

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Double scale
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Similar ratio
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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.