Home / 8,122.90-11,210.35-4,935.46

Finding the Fourth Proportional to 8,122.90, 11,210.35 and 4,935.46

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Solution

The fourth proportional to 8,122.90, 11,210.35 and 4,935.46 is: 6,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.90 : 11,210.35 = 4,935.46 : x
  2. Step 2: Convert to fraction form
    8,122.90/11,210.35 = 4,935.46/x
  3. Step 3: Cross multiply
    8,122.90x = 11,210.35 × 4,935.46
  4. Step 4: Simplify right side
    8,122.90x = 55,328,192.39
  5. Step 5: Solve for x
    x = 55,328,192.39/8,122.90
  6. Step 6: Final answer
    x = 6,811.38

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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.