Home / 19,810.81-29,718.06-7,163.73

Finding the Fourth Proportional to 19,810.81, 29,718.06 and 7,163.73

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Solution

The fourth proportional to 19,810.81, 29,718.06 and 7,163.73 is: 10,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.81 : 29,718.06 = 7,163.73 : x
  2. Step 2: Convert to fraction form
    19,810.81/29,718.06 = 7,163.73/x
  3. Step 3: Cross multiply
    19,810.81x = 29,718.06 × 7,163.73
  4. Step 4: Simplify right side
    19,810.81x = 212,892,214.68
  5. Step 5: Solve for x
    x = 212,892,214.68/19,810.81
  6. Step 6: Final answer
    x = 10,746.26

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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.