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Finding the Fourth Proportional to 15,340.57, 22,992.02 and 7,940.81

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Solution

The fourth proportional to 15,340.57, 22,992.02 and 7,940.81 is: 11,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.57 : 22,992.02 = 7,940.81 : x
  2. Step 2: Convert to fraction form
    15,340.57/22,992.02 = 7,940.81/x
  3. Step 3: Cross multiply
    15,340.57x = 22,992.02 × 7,940.81
  4. Step 4: Simplify right side
    15,340.57x = 182,575,222.63
  5. Step 5: Solve for x
    x = 182,575,222.63/15,340.57
  6. Step 6: Final answer
    x = 11,901.47

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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.