Home / 13,621.64-18,799.02-7,654.77

Finding the Fourth Proportional to 13,621.64, 18,799.02 and 7,654.77

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Solution

The fourth proportional to 13,621.64, 18,799.02 and 7,654.77 is: 10,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.64 : 18,799.02 = 7,654.77 : x
  2. Step 2: Convert to fraction form
    13,621.64/18,799.02 = 7,654.77/x
  3. Step 3: Cross multiply
    13,621.64x = 18,799.02 × 7,654.77
  4. Step 4: Simplify right side
    13,621.64x = 143,902,174.33
  5. Step 5: Solve for x
    x = 143,902,174.33/13,621.64
  6. Step 6: Final answer
    x = 10,564.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.