Home / 18,378.06-25,367.50-10,425.57

Finding the Fourth Proportional to 18,378.06, 25,367.50 and 10,425.57

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Solution

The fourth proportional to 18,378.06, 25,367.50 and 10,425.57 is: 14,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.06 : 25,367.50 = 10,425.57 : x
  2. Step 2: Convert to fraction form
    18,378.06/25,367.50 = 10,425.57/x
  3. Step 3: Cross multiply
    18,378.06x = 25,367.50 × 10,425.57
  4. Step 4: Simplify right side
    18,378.06x = 264,470,646.98
  5. Step 5: Solve for x
    x = 264,470,646.98/18,378.06
  6. Step 6: Final answer
    x = 14,390.56

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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.