Home / 15,167.04-20,930.67-8,361.31

Finding the Fourth Proportional to 15,167.04, 20,930.67 and 8,361.31

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Solution

The fourth proportional to 15,167.04, 20,930.67 and 8,361.31 is: 11,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.04 : 20,930.67 = 8,361.31 : x
  2. Step 2: Convert to fraction form
    15,167.04/20,930.67 = 8,361.31/x
  3. Step 3: Cross multiply
    15,167.04x = 20,930.67 × 8,361.31
  4. Step 4: Simplify right side
    15,167.04x = 175,007,820.38
  5. Step 5: Solve for x
    x = 175,007,820.38/15,167.04
  6. Step 6: Final answer
    x = 11,538.69

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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.