Home / 8,720.53-13,086.36-3,173.35

Finding the Fourth Proportional to 8,720.53, 13,086.36 and 3,173.35

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Solution

The fourth proportional to 8,720.53, 13,086.36 and 3,173.35 is: 4,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.53 : 13,086.36 = 3,173.35 : x
  2. Step 2: Convert to fraction form
    8,720.53/13,086.36 = 3,173.35/x
  3. Step 3: Cross multiply
    8,720.53x = 13,086.36 × 3,173.35
  4. Step 4: Simplify right side
    8,720.53x = 41,527,600.51
  5. Step 5: Solve for x
    x = 41,527,600.51/8,720.53
  6. Step 6: Final answer
    x = 4,762.05

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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.