Home / 8,210.42-11,325.78-5,382.35

Finding the Fourth Proportional to 8,210.42, 11,325.78 and 5,382.35

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Solution

The fourth proportional to 8,210.42, 11,325.78 and 5,382.35 is: 7,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.42 : 11,325.78 = 5,382.35 : x
  2. Step 2: Convert to fraction form
    8,210.42/11,325.78 = 5,382.35/x
  3. Step 3: Cross multiply
    8,210.42x = 11,325.78 × 5,382.35
  4. Step 4: Simplify right side
    8,210.42x = 60,959,255.35
  5. Step 5: Solve for x
    x = 60,959,255.35/8,210.42
  6. Step 6: Final answer
    x = 7,424.63

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1.5x scale

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.