Home / 18,387.06-25,372.74-10,427.94

Finding the Fourth Proportional to 18,387.06, 25,372.74 and 10,427.94

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Solution

The fourth proportional to 18,387.06, 25,372.74 and 10,427.94 is: 14,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.06 : 25,372.74 = 10,427.94 : x
  2. Step 2: Convert to fraction form
    18,387.06/25,372.74 = 10,427.94/x
  3. Step 3: Cross multiply
    18,387.06x = 25,372.74 × 10,427.94
  4. Step 4: Simplify right side
    18,387.06x = 264,585,410.36
  5. Step 5: Solve for x
    x = 264,585,410.36/18,387.06
  6. Step 6: Final answer
    x = 14,389.76

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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.