Home / 9,418.82-13,002.81-6,636.74

Finding the Fourth Proportional to 9,418.82, 13,002.81 and 6,636.74

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Solution

The fourth proportional to 9,418.82, 13,002.81 and 6,636.74 is: 9,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.82 : 13,002.81 = 6,636.74 : x
  2. Step 2: Convert to fraction form
    9,418.82/13,002.81 = 6,636.74/x
  3. Step 3: Cross multiply
    9,418.82x = 13,002.81 × 6,636.74
  4. Step 4: Simplify right side
    9,418.82x = 86,296,269.24
  5. Step 5: Solve for x
    x = 86,296,269.24/9,418.82
  6. Step 6: Final answer
    x = 9,162.11

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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.