Home / 12,007.68-16,568.40-6,972.48

Finding the Fourth Proportional to 12,007.68, 16,568.40 and 6,972.48

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Solution

The fourth proportional to 12,007.68, 16,568.40 and 6,972.48 is: 9,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.68 : 16,568.40 = 6,972.48 : x
  2. Step 2: Convert to fraction form
    12,007.68/16,568.40 = 6,972.48/x
  3. Step 3: Cross multiply
    12,007.68x = 16,568.40 × 6,972.48
  4. Step 4: Simplify right side
    12,007.68x = 115,522,837.63
  5. Step 5: Solve for x
    x = 115,522,837.63/12,007.68
  6. Step 6: Final answer
    x = 9,620.75

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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.