Home / 6,838.10-10,239.40-5,857.21

Finding the Fourth Proportional to 6,838.10, 10,239.40 and 5,857.21

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Solution

The fourth proportional to 6,838.10, 10,239.40 and 5,857.21 is: 8,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,838.10 : 10,239.40 = 5,857.21 : x
  2. Step 2: Convert to fraction form
    6,838.10/10,239.40 = 5,857.21/x
  3. Step 3: Cross multiply
    6,838.10x = 10,239.40 × 5,857.21
  4. Step 4: Simplify right side
    6,838.10x = 59,974,316.07
  5. Step 5: Solve for x
    x = 59,974,316.07/6,838.10
  6. Step 6: Final answer
    x = 8,770.61

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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.