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Finding the Fourth Proportional to 6,819.84, 9,428.15 and 6,757.47

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Solution

The fourth proportional to 6,819.84, 9,428.15 and 6,757.47 is: 9,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.84 : 9,428.15 = 6,757.47 : x
  2. Step 2: Convert to fraction form
    6,819.84/9,428.15 = 6,757.47/x
  3. Step 3: Cross multiply
    6,819.84x = 9,428.15 × 6,757.47
  4. Step 4: Simplify right side
    6,819.84x = 63,710,432.33
  5. Step 5: Solve for x
    x = 63,710,432.33/6,819.84
  6. Step 6: Final answer
    x = 9,341.92

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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.