Home / 15,771.05-21,763.77-8,601.02

Finding the Fourth Proportional to 15,771.05, 21,763.77 and 8,601.02

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Solution

The fourth proportional to 15,771.05, 21,763.77 and 8,601.02 is: 11,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.05 : 21,763.77 = 8,601.02 : x
  2. Step 2: Convert to fraction form
    15,771.05/21,763.77 = 8,601.02/x
  3. Step 3: Cross multiply
    15,771.05x = 21,763.77 × 8,601.02
  4. Step 4: Simplify right side
    15,771.05x = 187,190,695.37
  5. Step 5: Solve for x
    x = 187,190,695.37/15,771.05
  6. Step 6: Final answer
    x = 11,869.26

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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.