Home / 7,938.90-11,907.81-3,008.16

Finding the Fourth Proportional to 7,938.90, 11,907.81 and 3,008.16

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Solution

The fourth proportional to 7,938.90, 11,907.81 and 3,008.16 is: 4,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.90 : 11,907.81 = 3,008.16 : x
  2. Step 2: Convert to fraction form
    7,938.90/11,907.81 = 3,008.16/x
  3. Step 3: Cross multiply
    7,938.90x = 11,907.81 × 3,008.16
  4. Step 4: Simplify right side
    7,938.90x = 35,820,597.73
  5. Step 5: Solve for x
    x = 35,820,597.73/7,938.90
  6. Step 6: Final answer
    x = 4,512.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.