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Finding the Fourth Proportional to 8,496.36, 12,699 and 7,661.52

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Solution

The fourth proportional to 8,496.36, 12,699 and 7,661.52 is: 11,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,496.36 : 12,699 = 7,661.52 : x
  2. Step 2: Convert to fraction form
    8,496.36/12,699 = 7,661.52/x
  3. Step 3: Cross multiply
    8,496.36x = 12,699 × 7,661.52
  4. Step 4: Simplify right side
    8,496.36x = 97,293,642.48
  5. Step 5: Solve for x
    x = 97,293,642.48/8,496.36
  6. Step 6: Final answer
    x = 11,451.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.