Home / 19,661.04-29,466.18-9,129.96

Finding the Fourth Proportional to 19,661.04, 29,466.18 and 9,129.96

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Solution

The fourth proportional to 19,661.04, 29,466.18 and 9,129.96 is: 13,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.04 : 29,466.18 = 9,129.96 : x
  2. Step 2: Convert to fraction form
    19,661.04/29,466.18 = 9,129.96/x
  3. Step 3: Cross multiply
    19,661.04x = 29,466.18 × 9,129.96
  4. Step 4: Simplify right side
    19,661.04x = 269,025,044.75
  5. Step 5: Solve for x
    x = 269,025,044.75/19,661.04
  6. Step 6: Final answer
    x = 13,683.15

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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.