Home / 18,686.75-25,789.55-13,962.83

Finding the Fourth Proportional to 18,686.75, 25,789.55 and 13,962.83

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Solution

The fourth proportional to 18,686.75, 25,789.55 and 13,962.83 is: 19,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.75 : 25,789.55 = 13,962.83 : x
  2. Step 2: Convert to fraction form
    18,686.75/25,789.55 = 13,962.83/x
  3. Step 3: Cross multiply
    18,686.75x = 25,789.55 × 13,962.83
  4. Step 4: Simplify right side
    18,686.75x = 360,094,903.66
  5. Step 5: Solve for x
    x = 360,094,903.66/18,686.75
  6. Step 6: Final answer
    x = 19,270.07

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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.