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Finding the Fourth Proportional to 12,507.01, 17,252.93 and 7,728.01

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Solution

The fourth proportional to 12,507.01, 17,252.93 and 7,728.01 is: 10,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.01 : 17,252.93 = 7,728.01 : x
  2. Step 2: Convert to fraction form
    12,507.01/17,252.93 = 7,728.01/x
  3. Step 3: Cross multiply
    12,507.01x = 17,252.93 × 7,728.01
  4. Step 4: Simplify right side
    12,507.01x = 133,330,791.76
  5. Step 5: Solve for x
    x = 133,330,791.76/12,507.01
  6. Step 6: Final answer
    x = 10,660.49

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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.