Home / 19,654.56-29,477.04-7,172.64

Finding the Fourth Proportional to 19,654.56, 29,477.04 and 7,172.64

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Solution

The fourth proportional to 19,654.56, 29,477.04 and 7,172.64 is: 10,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.56 : 29,477.04 = 7,172.64 : x
  2. Step 2: Convert to fraction form
    19,654.56/29,477.04 = 7,172.64/x
  3. Step 3: Cross multiply
    19,654.56x = 29,477.04 × 7,172.64
  4. Step 4: Simplify right side
    19,654.56x = 211,428,196.19
  5. Step 5: Solve for x
    x = 211,428,196.19/19,654.56
  6. Step 6: Final answer
    x = 10,757.21

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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.