Home / 13,338.24-18,416.88-12,343.20

Finding the Fourth Proportional to 13,338.24, 18,416.88 and 12,343.20

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Solution

The fourth proportional to 13,338.24, 18,416.88 and 12,343.20 is: 17,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.24 : 18,416.88 = 12,343.20 : x
  2. Step 2: Convert to fraction form
    13,338.24/18,416.88 = 12,343.20/x
  3. Step 3: Cross multiply
    13,338.24x = 18,416.88 × 12,343.20
  4. Step 4: Simplify right side
    13,338.24x = 227,323,233.22
  5. Step 5: Solve for x
    x = 227,323,233.22/13,338.24
  6. Step 6: Final answer
    x = 17,042.97

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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.