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Finding the Fourth Proportional to 8,599.74, 11,893.83 and 7,715.22

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Solution

The fourth proportional to 8,599.74, 11,893.83 and 7,715.22 is: 10,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.74 : 11,893.83 = 7,715.22 : x
  2. Step 2: Convert to fraction form
    8,599.74/11,893.83 = 7,715.22/x
  3. Step 3: Cross multiply
    8,599.74x = 11,893.83 × 7,715.22
  4. Step 4: Simplify right side
    8,599.74x = 91,763,515.09
  5. Step 5: Solve for x
    x = 91,763,515.09/8,599.74
  6. Step 6: Final answer
    x = 10,670.50

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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.