Home / 18,268.11-25,207.47-10,200.78

Finding the Fourth Proportional to 18,268.11, 25,207.47 and 10,200.78

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Solution

The fourth proportional to 18,268.11, 25,207.47 and 10,200.78 is: 14,075.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.11 : 25,207.47 = 10,200.78 : x
  2. Step 2: Convert to fraction form
    18,268.11/25,207.47 = 10,200.78/x
  3. Step 3: Cross multiply
    18,268.11x = 25,207.47 × 10,200.78
  4. Step 4: Simplify right side
    18,268.11x = 257,135,855.83
  5. Step 5: Solve for x
    x = 257,135,855.83/18,268.11
  6. Step 6: Final answer
    x = 14,075.67

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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.