Home / 13,953.22-19,255.44-7,665.59

Finding the Fourth Proportional to 13,953.22, 19,255.44 and 7,665.59

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Solution

The fourth proportional to 13,953.22, 19,255.44 and 7,665.59 is: 10,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.22 : 19,255.44 = 7,665.59 : x
  2. Step 2: Convert to fraction form
    13,953.22/19,255.44 = 7,665.59/x
  3. Step 3: Cross multiply
    13,953.22x = 19,255.44 × 7,665.59
  4. Step 4: Simplify right side
    13,953.22x = 147,604,308.31
  5. Step 5: Solve for x
    x = 147,604,308.31/13,953.22
  6. Step 6: Final answer
    x = 10,578.51

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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.