Home / 13,422.06-18,524.46-9,657.69

Finding the Fourth Proportional to 13,422.06, 18,524.46 and 9,657.69

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Solution

The fourth proportional to 13,422.06, 18,524.46 and 9,657.69 is: 13,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.06 : 18,524.46 = 9,657.69 : x
  2. Step 2: Convert to fraction form
    13,422.06/18,524.46 = 9,657.69/x
  3. Step 3: Cross multiply
    13,422.06x = 18,524.46 × 9,657.69
  4. Step 4: Simplify right side
    13,422.06x = 178,903,399.48
  5. Step 5: Solve for x
    x = 178,903,399.48/13,422.06
  6. Step 6: Final answer
    x = 13,329.06

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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.