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Finding the Fourth Proportional to 8,664.01, 11,959.40 and 5,127.21

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Solution

The fourth proportional to 8,664.01, 11,959.40 and 5,127.21 is: 7,077.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.01 : 11,959.40 = 5,127.21 : x
  2. Step 2: Convert to fraction form
    8,664.01/11,959.40 = 5,127.21/x
  3. Step 3: Cross multiply
    8,664.01x = 11,959.40 × 5,127.21
  4. Step 4: Simplify right side
    8,664.01x = 61,318,355.27
  5. Step 5: Solve for x
    x = 61,318,355.27/8,664.01
  6. Step 6: Final answer
    x = 7,077.36

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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.