Home / 13,340.72-18,396.36-11,458.52

Finding the Fourth Proportional to 13,340.72, 18,396.36 and 11,458.52

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Solution

The fourth proportional to 13,340.72, 18,396.36 and 11,458.52 is: 15,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.72 : 18,396.36 = 11,458.52 : x
  2. Step 2: Convert to fraction form
    13,340.72/18,396.36 = 11,458.52/x
  3. Step 3: Cross multiply
    13,340.72x = 18,396.36 × 11,458.52
  4. Step 4: Simplify right side
    13,340.72x = 210,794,967.01
  5. Step 5: Solve for x
    x = 210,794,967.01/13,340.72
  6. Step 6: Final answer
    x = 15,800.87

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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.