Home / 11,889.72-17,838.90-5,570.24

Finding the Fourth Proportional to 11,889.72, 17,838.90 and 5,570.24

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Solution

The fourth proportional to 11,889.72, 17,838.90 and 5,570.24 is: 8,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.72 : 17,838.90 = 5,570.24 : x
  2. Step 2: Convert to fraction form
    11,889.72/17,838.90 = 5,570.24/x
  3. Step 3: Cross multiply
    11,889.72x = 17,838.90 × 5,570.24
  4. Step 4: Simplify right side
    11,889.72x = 99,366,865.14
  5. Step 5: Solve for x
    x = 99,366,865.14/11,889.72
  6. Step 6: Final answer
    x = 8,357.38

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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.