Home / 13,245.16-18,238.26-12,953.56

Finding the Fourth Proportional to 13,245.16, 18,238.26 and 12,953.56

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Solution

The fourth proportional to 13,245.16, 18,238.26 and 12,953.56 is: 17,836.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.16 : 18,238.26 = 12,953.56 : x
  2. Step 2: Convert to fraction form
    13,245.16/18,238.26 = 12,953.56/x
  3. Step 3: Cross multiply
    13,245.16x = 18,238.26 × 12,953.56
  4. Step 4: Simplify right side
    13,245.16x = 236,250,395.21
  5. Step 5: Solve for x
    x = 236,250,395.21/13,245.16
  6. Step 6: Final answer
    x = 17,836.73

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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.