Home / 18,189.22-25,100.75-10,640.02

Finding the Fourth Proportional to 18,189.22, 25,100.75 and 10,640.02

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Solution

The fourth proportional to 18,189.22, 25,100.75 and 10,640.02 is: 14,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.22 : 25,100.75 = 10,640.02 : x
  2. Step 2: Convert to fraction form
    18,189.22/25,100.75 = 10,640.02/x
  3. Step 3: Cross multiply
    18,189.22x = 25,100.75 × 10,640.02
  4. Step 4: Simplify right side
    18,189.22x = 267,072,405.96
  5. Step 5: Solve for x
    x = 267,072,405.96/18,189.22
  6. Step 6: Final answer
    x = 14,683.01

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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.