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Finding the Fourth Proportional to 8,735.53, 12,066.83 and 6,979.45

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Solution

The fourth proportional to 8,735.53, 12,066.83 and 6,979.45 is: 9,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.53 : 12,066.83 = 6,979.45 : x
  2. Step 2: Convert to fraction form
    8,735.53/12,066.83 = 6,979.45/x
  3. Step 3: Cross multiply
    8,735.53x = 12,066.83 × 6,979.45
  4. Step 4: Simplify right side
    8,735.53x = 84,219,801.75
  5. Step 5: Solve for x
    x = 84,219,801.75/8,735.53
  6. Step 6: Final answer
    x = 9,641.06

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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.