Home / 13,620.62-18,803.67-10,589.06

Finding the Fourth Proportional to 13,620.62, 18,803.67 and 10,589.06

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Solution

The fourth proportional to 13,620.62, 18,803.67 and 10,589.06 is: 14,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.62 : 18,803.67 = 10,589.06 : x
  2. Step 2: Convert to fraction form
    13,620.62/18,803.67 = 10,589.06/x
  3. Step 3: Cross multiply
    13,620.62x = 18,803.67 × 10,589.06
  4. Step 4: Simplify right side
    13,620.62x = 199,113,189.85
  5. Step 5: Solve for x
    x = 199,113,189.85/13,620.62
  6. Step 6: Final answer
    x = 14,618.51

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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.