Home / 10,889.82-15,022.80-7,354.26

Finding the Fourth Proportional to 10,889.82, 15,022.80 and 7,354.26

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Solution

The fourth proportional to 10,889.82, 15,022.80 and 7,354.26 is: 10,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.82 : 15,022.80 = 7,354.26 : x
  2. Step 2: Convert to fraction form
    10,889.82/15,022.80 = 7,354.26/x
  3. Step 3: Cross multiply
    10,889.82x = 15,022.80 × 7,354.26
  4. Step 4: Simplify right side
    10,889.82x = 110,481,577.13
  5. Step 5: Solve for x
    x = 110,481,577.13/10,889.82
  6. Step 6: Final answer
    x = 10,145.40

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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.