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Finding the Fourth Proportional to 6,657.42, 9,187.63 and 4,005.69

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Solution

The fourth proportional to 6,657.42, 9,187.63 and 4,005.69 is: 5,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.42 : 9,187.63 = 4,005.69 : x
  2. Step 2: Convert to fraction form
    6,657.42/9,187.63 = 4,005.69/x
  3. Step 3: Cross multiply
    6,657.42x = 9,187.63 × 4,005.69
  4. Step 4: Simplify right side
    6,657.42x = 36,802,753.15
  5. Step 5: Solve for x
    x = 36,802,753.15/6,657.42
  6. Step 6: Final answer
    x = 5,528.08

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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.