Home / 19,722.83-27,219.47-11,765.05

Finding the Fourth Proportional to 19,722.83, 27,219.47 and 11,765.05

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Solution

The fourth proportional to 19,722.83, 27,219.47 and 11,765.05 is: 16,236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.83 : 27,219.47 = 11,765.05 : x
  2. Step 2: Convert to fraction form
    19,722.83/27,219.47 = 11,765.05/x
  3. Step 3: Cross multiply
    19,722.83x = 27,219.47 × 11,765.05
  4. Step 4: Simplify right side
    19,722.83x = 320,238,425.52
  5. Step 5: Solve for x
    x = 320,238,425.52/19,722.83
  6. Step 6: Final answer
    x = 16,236.94

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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.