Home / 18,338.43-25,307.64-10,380.49

Finding the Fourth Proportional to 18,338.43, 25,307.64 and 10,380.49

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Solution

The fourth proportional to 18,338.43, 25,307.64 and 10,380.49 is: 14,325.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.43 : 25,307.64 = 10,380.49 : x
  2. Step 2: Convert to fraction form
    18,338.43/25,307.64 = 10,380.49/x
  3. Step 3: Cross multiply
    18,338.43x = 25,307.64 × 10,380.49
  4. Step 4: Simplify right side
    18,338.43x = 262,705,525.50
  5. Step 5: Solve for x
    x = 262,705,525.50/18,338.43
  6. Step 6: Final answer
    x = 14,325.41

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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.