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Finding the Fourth Proportional to 12,503.88, 18,664.53 and 10,927.47

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Solution

The fourth proportional to 12,503.88, 18,664.53 and 10,927.47 is: 16,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.88 : 18,664.53 = 10,927.47 : x
  2. Step 2: Convert to fraction form
    12,503.88/18,664.53 = 10,927.47/x
  3. Step 3: Cross multiply
    12,503.88x = 18,664.53 × 10,927.47
  4. Step 4: Simplify right side
    12,503.88x = 203,956,091.64
  5. Step 5: Solve for x
    x = 203,956,091.64/12,503.88
  6. Step 6: Final answer
    x = 16,311.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.