Home / 11,351.44-15,672.30-7,320.07

Finding the Fourth Proportional to 11,351.44, 15,672.30 and 7,320.07

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Solution

The fourth proportional to 11,351.44, 15,672.30 and 7,320.07 is: 10,106.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.44 : 15,672.30 = 7,320.07 : x
  2. Step 2: Convert to fraction form
    11,351.44/15,672.30 = 7,320.07/x
  3. Step 3: Cross multiply
    11,351.44x = 15,672.30 × 7,320.07
  4. Step 4: Simplify right side
    11,351.44x = 114,722,254.70
  5. Step 5: Solve for x
    x = 114,722,254.70/11,351.44
  6. Step 6: Final answer
    x = 10,106.41

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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.