Home / 18,147.74-25,047.84-13,056.86

Finding the Fourth Proportional to 18,147.74, 25,047.84 and 13,056.86

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Solution

The fourth proportional to 18,147.74, 25,047.84 and 13,056.86 is: 18,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.74 : 25,047.84 = 13,056.86 : x
  2. Step 2: Convert to fraction form
    18,147.74/25,047.84 = 13,056.86/x
  3. Step 3: Cross multiply
    18,147.74x = 25,047.84 × 13,056.86
  4. Step 4: Simplify right side
    18,147.74x = 327,046,140.18
  5. Step 5: Solve for x
    x = 327,046,140.18/18,147.74
  6. Step 6: Final answer
    x = 18,021.32

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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.