Home / 15,964.70-22,028.56-8,889.75

Finding the Fourth Proportional to 15,964.70, 22,028.56 and 8,889.75

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Solution

The fourth proportional to 15,964.70, 22,028.56 and 8,889.75 is: 12,266.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,964.70 : 22,028.56 = 8,889.75 : x
  2. Step 2: Convert to fraction form
    15,964.70/22,028.56 = 8,889.75/x
  3. Step 3: Cross multiply
    15,964.70x = 22,028.56 × 8,889.75
  4. Step 4: Simplify right side
    15,964.70x = 195,828,369.04
  5. Step 5: Solve for x
    x = 195,828,369.04/15,964.70
  6. Step 6: Final answer
    x = 12,266.34

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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.