Home / 12,664.68-18,971.10-7,454.76

Finding the Fourth Proportional to 12,664.68, 18,971.10 and 7,454.76

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Solution

The fourth proportional to 12,664.68, 18,971.10 and 7,454.76 is: 11,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.68 : 18,971.10 = 7,454.76 : x
  2. Step 2: Convert to fraction form
    12,664.68/18,971.10 = 7,454.76/x
  3. Step 3: Cross multiply
    12,664.68x = 18,971.10 × 7,454.76
  4. Step 4: Simplify right side
    12,664.68x = 141,424,997.44
  5. Step 5: Solve for x
    x = 141,424,997.44/12,664.68
  6. Step 6: Final answer
    x = 11,166.88

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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.