Home / 13,029.96-17,975.76-8,247.60

Finding the Fourth Proportional to 13,029.96, 17,975.76 and 8,247.60

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Solution

The fourth proportional to 13,029.96, 17,975.76 and 8,247.60 is: 11,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.96 : 17,975.76 = 8,247.60 : x
  2. Step 2: Convert to fraction form
    13,029.96/17,975.76 = 8,247.60/x
  3. Step 3: Cross multiply
    13,029.96x = 17,975.76 × 8,247.60
  4. Step 4: Simplify right side
    13,029.96x = 148,256,878.18
  5. Step 5: Solve for x
    x = 148,256,878.18/13,029.96
  6. Step 6: Final answer
    x = 11,378.15

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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.