Home / 15,986.06-22,061.36-8,913.85

Finding the Fourth Proportional to 15,986.06, 22,061.36 and 8,913.85

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Solution

The fourth proportional to 15,986.06, 22,061.36 and 8,913.85 is: 12,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.06 : 22,061.36 = 8,913.85 : x
  2. Step 2: Convert to fraction form
    15,986.06/22,061.36 = 8,913.85/x
  3. Step 3: Cross multiply
    15,986.06x = 22,061.36 × 8,913.85
  4. Step 4: Simplify right side
    15,986.06x = 196,651,620.97
  5. Step 5: Solve for x
    x = 196,651,620.97/15,986.06
  6. Step 6: Final answer
    x = 12,301.44

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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.