Home / 8,720.16-13,083.56-4,042.42

Finding the Fourth Proportional to 8,720.16, 13,083.56 and 4,042.42

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Solution

The fourth proportional to 8,720.16, 13,083.56 and 4,042.42 is: 6,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.16 : 13,083.56 = 4,042.42 : x
  2. Step 2: Convert to fraction form
    8,720.16/13,083.56 = 4,042.42/x
  3. Step 3: Cross multiply
    8,720.16x = 13,083.56 × 4,042.42
  4. Step 4: Simplify right side
    8,720.16x = 52,889,244.62
  5. Step 5: Solve for x
    x = 52,889,244.62/8,720.16
  6. Step 6: Final answer
    x = 6,065.17

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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.