Home / 8,309.39-11,442.48-7,424.87

Finding the Fourth Proportional to 8,309.39, 11,442.48 and 7,424.87

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Solution

The fourth proportional to 8,309.39, 11,442.48 and 7,424.87 is: 10,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.39 : 11,442.48 = 7,424.87 : x
  2. Step 2: Convert to fraction form
    8,309.39/11,442.48 = 7,424.87/x
  3. Step 3: Cross multiply
    8,309.39x = 11,442.48 × 7,424.87
  4. Step 4: Simplify right side
    8,309.39x = 84,958,926.48
  5. Step 5: Solve for x
    x = 84,958,926.48/8,309.39
  6. Step 6: Final answer
    x = 10,224.45

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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.