Home / 13,995.18-19,311.09-8,025.75

Finding the Fourth Proportional to 13,995.18, 19,311.09 and 8,025.75

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Solution

The fourth proportional to 13,995.18, 19,311.09 and 8,025.75 is: 11,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.18 : 19,311.09 = 8,025.75 : x
  2. Step 2: Convert to fraction form
    13,995.18/19,311.09 = 8,025.75/x
  3. Step 3: Cross multiply
    13,995.18x = 19,311.09 × 8,025.75
  4. Step 4: Simplify right side
    13,995.18x = 154,985,980.57
  5. Step 5: Solve for x
    x = 154,985,980.57/13,995.18
  6. Step 6: Final answer
    x = 11,074.24

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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.