Home / 6,921.34-9,551.96-3,938.13

Finding the Fourth Proportional to 6,921.34, 9,551.96 and 3,938.13

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Solution

The fourth proportional to 6,921.34, 9,551.96 and 3,938.13 is: 5,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.34 : 9,551.96 = 3,938.13 : x
  2. Step 2: Convert to fraction form
    6,921.34/9,551.96 = 3,938.13/x
  3. Step 3: Cross multiply
    6,921.34x = 9,551.96 × 3,938.13
  4. Step 4: Simplify right side
    6,921.34x = 37,616,860.23
  5. Step 5: Solve for x
    x = 37,616,860.23/6,921.34
  6. Step 6: Final answer
    x = 5,434.91

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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.