Home / 13,335.99-18,403.38-7,367.31

Finding the Fourth Proportional to 13,335.99, 18,403.38 and 7,367.31

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Solution

The fourth proportional to 13,335.99, 18,403.38 and 7,367.31 is: 10,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.99 : 18,403.38 = 7,367.31 : x
  2. Step 2: Convert to fraction form
    13,335.99/18,403.38 = 7,367.31/x
  3. Step 3: Cross multiply
    13,335.99x = 18,403.38 × 7,367.31
  4. Step 4: Simplify right side
    13,335.99x = 135,583,405.51
  5. Step 5: Solve for x
    x = 135,583,405.51/13,335.99
  6. Step 6: Final answer
    x = 10,166.73

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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.