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Finding the Fourth Proportional to 12,865.56, 17,754.58 and 7,560.46

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Solution

The fourth proportional to 12,865.56, 17,754.58 and 7,560.46 is: 10,433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.56 : 17,754.58 = 7,560.46 : x
  2. Step 2: Convert to fraction form
    12,865.56/17,754.58 = 7,560.46/x
  3. Step 3: Cross multiply
    12,865.56x = 17,754.58 × 7,560.46
  4. Step 4: Simplify right side
    12,865.56x = 134,232,791.91
  5. Step 5: Solve for x
    x = 134,232,791.91/12,865.56
  6. Step 6: Final answer
    x = 10,433.50

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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.