Home / 12,821.81-19,232.86-4,502.06

Finding the Fourth Proportional to 12,821.81, 19,232.86 and 4,502.06

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Solution

The fourth proportional to 12,821.81, 19,232.86 and 4,502.06 is: 6,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.81 : 19,232.86 = 4,502.06 : x
  2. Step 2: Convert to fraction form
    12,821.81/19,232.86 = 4,502.06/x
  3. Step 3: Cross multiply
    12,821.81x = 19,232.86 × 4,502.06
  4. Step 4: Simplify right side
    12,821.81x = 86,587,489.69
  5. Step 5: Solve for x
    x = 86,587,489.69/12,821.81
  6. Step 6: Final answer
    x = 6,753.14

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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.