Home / 6,838.18-10,239.47-6,422.60

Finding the Fourth Proportional to 6,838.18, 10,239.47 and 6,422.60

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Solution

The fourth proportional to 6,838.18, 10,239.47 and 6,422.60 is: 9,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,838.18 : 10,239.47 = 6,422.60 : x
  2. Step 2: Convert to fraction form
    6,838.18/10,239.47 = 6,422.60/x
  3. Step 3: Cross multiply
    6,838.18x = 10,239.47 × 6,422.60
  4. Step 4: Simplify right side
    6,838.18x = 65,763,960.80
  5. Step 5: Solve for x
    x = 65,763,960.80/6,838.18
  6. Step 6: Final answer
    x = 9,617.17

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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.