Home / 13,310.10-18,367.08-7,341.81

Finding the Fourth Proportional to 13,310.10, 18,367.08 and 7,341.81

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Solution

The fourth proportional to 13,310.10, 18,367.08 and 7,341.81 is: 10,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.10 : 18,367.08 = 7,341.81 : x
  2. Step 2: Convert to fraction form
    13,310.10/18,367.08 = 7,341.81/x
  3. Step 3: Cross multiply
    13,310.10x = 18,367.08 × 7,341.81
  4. Step 4: Simplify right side
    13,310.10x = 134,847,519.78
  5. Step 5: Solve for x
    x = 134,847,519.78/13,310.10
  6. Step 6: Final answer
    x = 10,131.22

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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.