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Finding the Fourth Proportional to 8,424.81, 12,606.23 and 5,081.13

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Solution

The fourth proportional to 8,424.81, 12,606.23 and 5,081.13 is: 7,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.81 : 12,606.23 = 5,081.13 : x
  2. Step 2: Convert to fraction form
    8,424.81/12,606.23 = 5,081.13/x
  3. Step 3: Cross multiply
    8,424.81x = 12,606.23 × 5,081.13
  4. Step 4: Simplify right side
    8,424.81x = 64,053,906.14
  5. Step 5: Solve for x
    x = 64,053,906.14/8,424.81
  6. Step 6: Final answer
    x = 7,603.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.