Home / 13,310.11-18,367.72-7,341.63

Finding the Fourth Proportional to 13,310.11, 18,367.72 and 7,341.63

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Solution

The fourth proportional to 13,310.11, 18,367.72 and 7,341.63 is: 10,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.11 : 18,367.72 = 7,341.63 : x
  2. Step 2: Convert to fraction form
    13,310.11/18,367.72 = 7,341.63/x
  3. Step 3: Cross multiply
    13,310.11x = 18,367.72 × 7,341.63
  4. Step 4: Simplify right side
    13,310.11x = 134,849,004.18
  5. Step 5: Solve for x
    x = 134,849,004.18/13,310.11
  6. Step 6: Final answer
    x = 10,131.32

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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.