Home / 15,965.56-22,028.52-8,890.21

Finding the Fourth Proportional to 15,965.56, 22,028.52 and 8,890.21

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Solution

The fourth proportional to 15,965.56, 22,028.52 and 8,890.21 is: 12,266.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,965.56 : 22,028.52 = 8,890.21 : x
  2. Step 2: Convert to fraction form
    15,965.56/22,028.52 = 8,890.21/x
  3. Step 3: Cross multiply
    15,965.56x = 22,028.52 × 8,890.21
  4. Step 4: Simplify right side
    15,965.56x = 195,838,168.79
  5. Step 5: Solve for x
    x = 195,838,168.79/15,965.56
  6. Step 6: Final answer
    x = 12,266.29

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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.