Home / 18,644.04-25,728.30-10,146.06

Finding the Fourth Proportional to 18,644.04, 25,728.30 and 10,146.06

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Solution

The fourth proportional to 18,644.04, 25,728.30 and 10,146.06 is: 14,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.04 : 25,728.30 = 10,146.06 : x
  2. Step 2: Convert to fraction form
    18,644.04/25,728.30 = 10,146.06/x
  3. Step 3: Cross multiply
    18,644.04x = 25,728.30 × 10,146.06
  4. Step 4: Simplify right side
    18,644.04x = 261,040,875.50
  5. Step 5: Solve for x
    x = 261,040,875.50/18,644.04
  6. Step 6: Final answer
    x = 14,001.30

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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.