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Finding the Fourth Proportional to 13,100.58, 18,079.19 and 7,435.22

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Solution

The fourth proportional to 13,100.58, 18,079.19 and 7,435.22 is: 10,260.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.58 : 18,079.19 = 7,435.22 : x
  2. Step 2: Convert to fraction form
    13,100.58/18,079.19 = 7,435.22/x
  3. Step 3: Cross multiply
    13,100.58x = 18,079.19 × 7,435.22
  4. Step 4: Simplify right side
    13,100.58x = 134,422,627.50
  5. Step 5: Solve for x
    x = 134,422,627.50/13,100.58
  6. Step 6: Final answer
    x = 10,260.81

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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.