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Finding the Fourth Proportional to 6,398.69, 8,835.66 and 6,113.33

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Solution

The fourth proportional to 6,398.69, 8,835.66 and 6,113.33 is: 8,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.69 : 8,835.66 = 6,113.33 : x
  2. Step 2: Convert to fraction form
    6,398.69/8,835.66 = 6,113.33/x
  3. Step 3: Cross multiply
    6,398.69x = 8,835.66 × 6,113.33
  4. Step 4: Simplify right side
    6,398.69x = 54,015,261.17
  5. Step 5: Solve for x
    x = 54,015,261.17/6,398.69
  6. Step 6: Final answer
    x = 8,441.62

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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.