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Finding the Fourth Proportional to 8,484.93, 11,720.42 and 7,073.23

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Solution

The fourth proportional to 8,484.93, 11,720.42 and 7,073.23 is: 9,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.93 : 11,720.42 = 7,073.23 : x
  2. Step 2: Convert to fraction form
    8,484.93/11,720.42 = 7,073.23/x
  3. Step 3: Cross multiply
    8,484.93x = 11,720.42 × 7,073.23
  4. Step 4: Simplify right side
    8,484.93x = 82,901,226.36
  5. Step 5: Solve for x
    x = 82,901,226.36/8,484.93
  6. Step 6: Final answer
    x = 9,770.41

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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.