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Finding the Fourth Proportional to 14,229, 19,636.97 and 7,941.51

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Solution

The fourth proportional to 14,229, 19,636.97 and 7,941.51 is: 10,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229 : 19,636.97 = 7,941.51 : x
  2. Step 2: Convert to fraction form
    14,229/19,636.97 = 7,941.51/x
  3. Step 3: Cross multiply
    14,229x = 19,636.97 × 7,941.51
  4. Step 4: Simplify right side
    14,229x = 155,947,153.92
  5. Step 5: Solve for x
    x = 155,947,153.92/14,229
  6. Step 6: Final answer
    x = 10,959.81

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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.