Home / 18,682.90-25,782.05-10,185.10

Finding the Fourth Proportional to 18,682.90, 25,782.05 and 10,185.10

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Solution

The fourth proportional to 18,682.90, 25,782.05 and 10,185.10 is: 14,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.90 : 25,782.05 = 10,185.10 : x
  2. Step 2: Convert to fraction form
    18,682.90/25,782.05 = 10,185.10/x
  3. Step 3: Cross multiply
    18,682.90x = 25,782.05 × 10,185.10
  4. Step 4: Simplify right side
    18,682.90x = 262,592,757.46
  5. Step 5: Solve for x
    x = 262,592,757.46/18,682.90
  6. Step 6: Final answer
    x = 14,055.25

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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.