Home / 18,271.74-25,217.46-10,719.90

Finding the Fourth Proportional to 18,271.74, 25,217.46 and 10,719.90

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Solution

The fourth proportional to 18,271.74, 25,217.46 and 10,719.90 is: 14,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.74 : 25,217.46 = 10,719.90 : x
  2. Step 2: Convert to fraction form
    18,271.74/25,217.46 = 10,719.90/x
  3. Step 3: Cross multiply
    18,271.74x = 25,217.46 × 10,719.90
  4. Step 4: Simplify right side
    18,271.74x = 270,328,649.45
  5. Step 5: Solve for x
    x = 270,328,649.45/18,271.74
  6. Step 6: Final answer
    x = 14,794.90

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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.