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Finding the Fourth Proportional to 12,645, 18,956.52 and 6,794.76

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Solution

The fourth proportional to 12,645, 18,956.52 and 6,794.76 is: 10,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645 : 18,956.52 = 6,794.76 : x
  2. Step 2: Convert to fraction form
    12,645/18,956.52 = 6,794.76/x
  3. Step 3: Cross multiply
    12,645x = 18,956.52 × 6,794.76
  4. Step 4: Simplify right side
    12,645x = 128,805,003.84
  5. Step 5: Solve for x
    x = 128,805,003.84/12,645
  6. Step 6: Final answer
    x = 10,186.24

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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.