Home / 18,771.79-25,902.50-11,216.52

Finding the Fourth Proportional to 18,771.79, 25,902.50 and 11,216.52

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Solution

The fourth proportional to 18,771.79, 25,902.50 and 11,216.52 is: 15,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.79 : 25,902.50 = 11,216.52 : x
  2. Step 2: Convert to fraction form
    18,771.79/25,902.50 = 11,216.52/x
  3. Step 3: Cross multiply
    18,771.79x = 25,902.50 × 11,216.52
  4. Step 4: Simplify right side
    18,771.79x = 290,535,853.22
  5. Step 5: Solve for x
    x = 290,535,853.22/18,771.79
  6. Step 6: Final answer
    x = 15,477.26

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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.