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Finding the Fourth Proportional to 7,713, 10,649.06 and 4,774.12

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Solution

The fourth proportional to 7,713, 10,649.06 and 4,774.12 is: 6,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713 : 10,649.06 = 4,774.12 : x
  2. Step 2: Convert to fraction form
    7,713/10,649.06 = 4,774.12/x
  3. Step 3: Cross multiply
    7,713x = 10,649.06 × 4,774.12
  4. Step 4: Simplify right side
    7,713x = 50,839,890.33
  5. Step 5: Solve for x
    x = 50,839,890.33/7,713
  6. Step 6: Final answer
    x = 6,591.45

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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.