Home / 15,686.24-21,644.04-10,654.48

Finding the Fourth Proportional to 15,686.24, 21,644.04 and 10,654.48

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Solution

The fourth proportional to 15,686.24, 21,644.04 and 10,654.48 is: 14,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686.24 : 21,644.04 = 10,654.48 : x
  2. Step 2: Convert to fraction form
    15,686.24/21,644.04 = 10,654.48/x
  3. Step 3: Cross multiply
    15,686.24x = 21,644.04 × 10,654.48
  4. Step 4: Simplify right side
    15,686.24x = 230,605,991.30
  5. Step 5: Solve for x
    x = 230,605,991.30/15,686.24
  6. Step 6: Final answer
    x = 14,701.16

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1.5x scale

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.