Home / 13,316.96-19,963.56-5,520.80

Finding the Fourth Proportional to 13,316.96, 19,963.56 and 5,520.80

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Solution

The fourth proportional to 13,316.96, 19,963.56 and 5,520.80 is: 8,276.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.96 : 19,963.56 = 5,520.80 : x
  2. Step 2: Convert to fraction form
    13,316.96/19,963.56 = 5,520.80/x
  3. Step 3: Cross multiply
    13,316.96x = 19,963.56 × 5,520.80
  4. Step 4: Simplify right side
    13,316.96x = 110,214,822.05
  5. Step 5: Solve for x
    x = 110,214,822.05/13,316.96
  6. Step 6: Final answer
    x = 8,276.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.