Home / 13,100.06-19,650.09-5,308.88

Finding the Fourth Proportional to 13,100.06, 19,650.09 and 5,308.88

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Solution

The fourth proportional to 13,100.06, 19,650.09 and 5,308.88 is: 7,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.06 : 19,650.09 = 5,308.88 : x
  2. Step 2: Convert to fraction form
    13,100.06/19,650.09 = 5,308.88/x
  3. Step 3: Cross multiply
    13,100.06x = 19,650.09 × 5,308.88
  4. Step 4: Simplify right side
    13,100.06x = 104,319,891.46
  5. Step 5: Solve for x
    x = 104,319,891.46/13,100.06
  6. Step 6: Final answer
    x = 7,963.31

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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.