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Finding the Fourth Proportional to 7,876.17, 11,818.98 and 7,069.41

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Solution

The fourth proportional to 7,876.17, 11,818.98 and 7,069.41 is: 10,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.17 : 11,818.98 = 7,069.41 : x
  2. Step 2: Convert to fraction form
    7,876.17/11,818.98 = 7,069.41/x
  3. Step 3: Cross multiply
    7,876.17x = 11,818.98 × 7,069.41
  4. Step 4: Simplify right side
    7,876.17x = 83,553,215.40
  5. Step 5: Solve for x
    x = 83,553,215.40/7,876.17
  6. Step 6: Final answer
    x = 10,608.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.