Home / 8,720.10-12,033.60-4,741.31

Finding the Fourth Proportional to 8,720.10, 12,033.60 and 4,741.31

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Solution

The fourth proportional to 8,720.10, 12,033.60 and 4,741.31 is: 6,542.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.10 : 12,033.60 = 4,741.31 : x
  2. Step 2: Convert to fraction form
    8,720.10/12,033.60 = 4,741.31/x
  3. Step 3: Cross multiply
    8,720.10x = 12,033.60 × 4,741.31
  4. Step 4: Simplify right side
    8,720.10x = 57,055,040.32
  5. Step 5: Solve for x
    x = 57,055,040.32/8,720.10
  6. Step 6: Final answer
    x = 6,542.93

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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.