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Finding the Fourth Proportional to 6,963.05, 9,612.74 and 5,377.90

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Solution

The fourth proportional to 6,963.05, 9,612.74 and 5,377.90 is: 7,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,963.05 : 9,612.74 = 5,377.90 : x
  2. Step 2: Convert to fraction form
    6,963.05/9,612.74 = 5,377.90/x
  3. Step 3: Cross multiply
    6,963.05x = 9,612.74 × 5,377.90
  4. Step 4: Simplify right side
    6,963.05x = 51,696,354.45
  5. Step 5: Solve for x
    x = 51,696,354.45/6,963.05
  6. Step 6: Final answer
    x = 7,424.38

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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.