Home / 13,953.73-19,256.28-7,666.09

Finding the Fourth Proportional to 13,953.73, 19,256.28 and 7,666.09

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Solution

The fourth proportional to 13,953.73, 19,256.28 and 7,666.09 is: 10,579.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.73 : 19,256.28 = 7,666.09 : x
  2. Step 2: Convert to fraction form
    13,953.73/19,256.28 = 7,666.09/x
  3. Step 3: Cross multiply
    13,953.73x = 19,256.28 × 7,666.09
  4. Step 4: Simplify right side
    13,953.73x = 147,620,375.55
  5. Step 5: Solve for x
    x = 147,620,375.55/13,953.73
  6. Step 6: Final answer
    x = 10,579.28

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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.