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Finding the Fourth Proportional to 7,835.66, 10,813.11 and 4,478.44

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Solution

The fourth proportional to 7,835.66, 10,813.11 and 4,478.44 is: 6,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.66 : 10,813.11 = 4,478.44 : x
  2. Step 2: Convert to fraction form
    7,835.66/10,813.11 = 4,478.44/x
  3. Step 3: Cross multiply
    7,835.66x = 10,813.11 × 4,478.44
  4. Step 4: Simplify right side
    7,835.66x = 48,425,864.35
  5. Step 5: Solve for x
    x = 48,425,864.35/7,835.66
  6. Step 6: Final answer
    x = 6,180.19

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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.