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Finding the Fourth Proportional to 8,600.91, 11,869.11 and 7,270.50

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Solution

The fourth proportional to 8,600.91, 11,869.11 and 7,270.50 is: 10,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.91 : 11,869.11 = 7,270.50 : x
  2. Step 2: Convert to fraction form
    8,600.91/11,869.11 = 7,270.50/x
  3. Step 3: Cross multiply
    8,600.91x = 11,869.11 × 7,270.50
  4. Step 4: Simplify right side
    8,600.91x = 86,294,364.26
  5. Step 5: Solve for x
    x = 86,294,364.26/8,600.91
  6. Step 6: Final answer
    x = 10,033.17

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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.