Home / 18,690.75-25,793.24-10,307.79

Finding the Fourth Proportional to 18,690.75, 25,793.24 and 10,307.79

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Solution

The fourth proportional to 18,690.75, 25,793.24 and 10,307.79 is: 14,224.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.75 : 25,793.24 = 10,307.79 : x
  2. Step 2: Convert to fraction form
    18,690.75/25,793.24 = 10,307.79/x
  3. Step 3: Cross multiply
    18,690.75x = 25,793.24 × 10,307.79
  4. Step 4: Simplify right side
    18,690.75x = 265,871,249.80
  5. Step 5: Solve for x
    x = 265,871,249.80/18,690.75
  6. Step 6: Final answer
    x = 14,224.75

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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.