Home / 8,731.48-12,048.60-5,195.56

Finding the Fourth Proportional to 8,731.48, 12,048.60 and 5,195.56

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Solution

The fourth proportional to 8,731.48, 12,048.60 and 5,195.56 is: 7,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.48 : 12,048.60 = 5,195.56 : x
  2. Step 2: Convert to fraction form
    8,731.48/12,048.60 = 5,195.56/x
  3. Step 3: Cross multiply
    8,731.48x = 12,048.60 × 5,195.56
  4. Step 4: Simplify right side
    8,731.48x = 62,599,224.22
  5. Step 5: Solve for x
    x = 62,599,224.22/8,731.48
  6. Step 6: Final answer
    x = 7,169.37

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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.