Home / 21,654.51-32,485.16-9,174.57

Finding the Fourth Proportional to 21,654.51, 32,485.16 and 9,174.57

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Solution

The fourth proportional to 21,654.51, 32,485.16 and 9,174.57 is: 13,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.51 : 32,485.16 = 9,174.57 : x
  2. Step 2: Convert to fraction form
    21,654.51/32,485.16 = 9,174.57/x
  3. Step 3: Cross multiply
    21,654.51x = 32,485.16 × 9,174.57
  4. Step 4: Simplify right side
    21,654.51x = 298,037,374.38
  5. Step 5: Solve for x
    x = 298,037,374.38/21,654.51
  6. Step 6: Final answer
    x = 13,763.29

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1.5x scale

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.