Home / 7,895.39-10,899.57-4,912.18

Finding the Fourth Proportional to 7,895.39, 10,899.57 and 4,912.18

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Solution

The fourth proportional to 7,895.39, 10,899.57 and 4,912.18 is: 6,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.39 : 10,899.57 = 4,912.18 : x
  2. Step 2: Convert to fraction form
    7,895.39/10,899.57 = 4,912.18/x
  3. Step 3: Cross multiply
    7,895.39x = 10,899.57 × 4,912.18
  4. Step 4: Simplify right side
    7,895.39x = 53,540,649.76
  5. Step 5: Solve for x
    x = 53,540,649.76/7,895.39
  6. Step 6: Final answer
    x = 6,781.25

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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.