Home / 8,720.29-13,083.93-3,174.02

Finding the Fourth Proportional to 8,720.29, 13,083.93 and 3,174.02

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Solution

The fourth proportional to 8,720.29, 13,083.93 and 3,174.02 is: 4,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.29 : 13,083.93 = 3,174.02 : x
  2. Step 2: Convert to fraction form
    8,720.29/13,083.93 = 3,174.02/x
  3. Step 3: Cross multiply
    8,720.29x = 13,083.93 × 3,174.02
  4. Step 4: Simplify right side
    8,720.29x = 41,528,639.14
  5. Step 5: Solve for x
    x = 41,528,639.14/8,720.29
  6. Step 6: Final answer
    x = 4,762.30

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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.