Home / 13,315.24-18,375.09-7,346.91

Finding the Fourth Proportional to 13,315.24, 18,375.09 and 7,346.91

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Solution

The fourth proportional to 13,315.24, 18,375.09 and 7,346.91 is: 10,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.24 : 18,375.09 = 7,346.91 : x
  2. Step 2: Convert to fraction form
    13,315.24/18,375.09 = 7,346.91/x
  3. Step 3: Cross multiply
    13,315.24x = 18,375.09 × 7,346.91
  4. Step 4: Simplify right side
    13,315.24x = 135,000,132.47
  5. Step 5: Solve for x
    x = 135,000,132.47/13,315.24
  6. Step 6: Final answer
    x = 10,138.77

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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.