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Finding the Fourth Proportional to 8,429.58, 11,630.79 and 6,187.53

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Solution

The fourth proportional to 8,429.58, 11,630.79 and 6,187.53 is: 8,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.58 : 11,630.79 = 6,187.53 : x
  2. Step 2: Convert to fraction form
    8,429.58/11,630.79 = 6,187.53/x
  3. Step 3: Cross multiply
    8,429.58x = 11,630.79 × 6,187.53
  4. Step 4: Simplify right side
    8,429.58x = 71,965,862.05
  5. Step 5: Solve for x
    x = 71,965,862.05/8,429.58
  6. Step 6: Final answer
    x = 8,537.30

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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.