Home / 13,238.58-18,269.29-7,573.39

Finding the Fourth Proportional to 13,238.58, 18,269.29 and 7,573.39

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Solution

The fourth proportional to 13,238.58, 18,269.29 and 7,573.39 is: 10,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.58 : 18,269.29 = 7,573.39 : x
  2. Step 2: Convert to fraction form
    13,238.58/18,269.29 = 7,573.39/x
  3. Step 3: Cross multiply
    13,238.58x = 18,269.29 × 7,573.39
  4. Step 4: Simplify right side
    13,238.58x = 138,360,458.19
  5. Step 5: Solve for x
    x = 138,360,458.19/13,238.58
  6. Step 6: Final answer
    x = 10,451.31

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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.