Home / 13,512.03-18,644.37-7,543.70

Finding the Fourth Proportional to 13,512.03, 18,644.37 and 7,543.70

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Solution

The fourth proportional to 13,512.03, 18,644.37 and 7,543.70 is: 10,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.03 : 18,644.37 = 7,543.70 : x
  2. Step 2: Convert to fraction form
    13,512.03/18,644.37 = 7,543.70/x
  3. Step 3: Cross multiply
    13,512.03x = 18,644.37 × 7,543.70
  4. Step 4: Simplify right side
    13,512.03x = 140,647,440.75
  5. Step 5: Solve for x
    x = 140,647,440.75/13,512.03
  6. Step 6: Final answer
    x = 10,409.05

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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.