Home / 7,935.78-10,938.75-6,254.46

Finding the Fourth Proportional to 7,935.78, 10,938.75 and 6,254.46

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Solution

The fourth proportional to 7,935.78, 10,938.75 and 6,254.46 is: 8,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.78 : 10,938.75 = 6,254.46 : x
  2. Step 2: Convert to fraction form
    7,935.78/10,938.75 = 6,254.46/x
  3. Step 3: Cross multiply
    7,935.78x = 10,938.75 × 6,254.46
  4. Step 4: Simplify right side
    7,935.78x = 68,415,974.33
  5. Step 5: Solve for x
    x = 68,415,974.33/7,935.78
  6. Step 6: Final answer
    x = 8,621.20

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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.