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Finding the Fourth Proportional to 12,494.76, 18,753.50 and 6,656.28

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Solution

The fourth proportional to 12,494.76, 18,753.50 and 6,656.28 is: 9,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.76 : 18,753.50 = 6,656.28 : x
  2. Step 2: Convert to fraction form
    12,494.76/18,753.50 = 6,656.28/x
  3. Step 3: Cross multiply
    12,494.76x = 18,753.50 × 6,656.28
  4. Step 4: Simplify right side
    12,494.76x = 124,828,546.98
  5. Step 5: Solve for x
    x = 124,828,546.98/12,494.76
  6. Step 6: Final answer
    x = 9,990.47

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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.