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Finding the Fourth Proportional to 15,270.17, 22,907.99 and 7,872.64

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Solution

The fourth proportional to 15,270.17, 22,907.99 and 7,872.64 is: 11,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.17 : 22,907.99 = 7,872.64 : x
  2. Step 2: Convert to fraction form
    15,270.17/22,907.99 = 7,872.64/x
  3. Step 3: Cross multiply
    15,270.17x = 22,907.99 × 7,872.64
  4. Step 4: Simplify right side
    15,270.17x = 180,346,319.03
  5. Step 5: Solve for x
    x = 180,346,319.03/15,270.17
  6. Step 6: Final answer
    x = 11,810.37

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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.