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Finding the Fourth Proportional to 8,005.79, 11,051.01 and 6,299.87

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Solution

The fourth proportional to 8,005.79, 11,051.01 and 6,299.87 is: 8,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.79 : 11,051.01 = 6,299.87 : x
  2. Step 2: Convert to fraction form
    8,005.79/11,051.01 = 6,299.87/x
  3. Step 3: Cross multiply
    8,005.79x = 11,051.01 × 6,299.87
  4. Step 4: Simplify right side
    8,005.79x = 69,619,871.11
  5. Step 5: Solve for x
    x = 69,619,871.11/8,005.79
  6. Step 6: Final answer
    x = 8,696.20

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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.