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Finding the Fourth Proportional to 7,804.11, 10,766.64 and 4,814.76

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Solution

The fourth proportional to 7,804.11, 10,766.64 and 4,814.76 is: 6,642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,804.11 : 10,766.64 = 4,814.76 : x
  2. Step 2: Convert to fraction form
    7,804.11/10,766.64 = 4,814.76/x
  3. Step 3: Cross multiply
    7,804.11x = 10,766.64 × 4,814.76
  4. Step 4: Simplify right side
    7,804.11x = 51,838,787.61
  5. Step 5: Solve for x
    x = 51,838,787.61/7,804.11
  6. Step 6: Final answer
    x = 6,642.50

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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.