Home / 13,153.44-18,151.20-7,489.02

Finding the Fourth Proportional to 13,153.44, 18,151.20 and 7,489.02

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Solution

The fourth proportional to 13,153.44, 18,151.20 and 7,489.02 is: 10,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.44 : 18,151.20 = 7,489.02 : x
  2. Step 2: Convert to fraction form
    13,153.44/18,151.20 = 7,489.02/x
  3. Step 3: Cross multiply
    13,153.44x = 18,151.20 × 7,489.02
  4. Step 4: Simplify right side
    13,153.44x = 135,934,699.82
  5. Step 5: Solve for x
    x = 135,934,699.82/13,153.44
  6. Step 6: Final answer
    x = 10,334.54

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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.