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Finding the Fourth Proportional to 6,394.90, 9,535.87 and 5,618.08

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Solution

The fourth proportional to 6,394.90, 9,535.87 and 5,618.08 is: 8,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394.90 : 9,535.87 = 5,618.08 : x
  2. Step 2: Convert to fraction form
    6,394.90/9,535.87 = 5,618.08/x
  3. Step 3: Cross multiply
    6,394.90x = 9,535.87 × 5,618.08
  4. Step 4: Simplify right side
    6,394.90x = 53,573,280.53
  5. Step 5: Solve for x
    x = 53,573,280.53/6,394.90
  6. Step 6: Final answer
    x = 8,377.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.