Home / 13,326.37-18,390.26-7,357.91

Finding the Fourth Proportional to 13,326.37, 18,390.26 and 7,357.91

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Solution

The fourth proportional to 13,326.37, 18,390.26 and 7,357.91 is: 10,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.37 : 18,390.26 = 7,357.91 : x
  2. Step 2: Convert to fraction form
    13,326.37/18,390.26 = 7,357.91/x
  3. Step 3: Cross multiply
    13,326.37x = 18,390.26 × 7,357.91
  4. Step 4: Simplify right side
    13,326.37x = 135,313,804.40
  5. Step 5: Solve for x
    x = 135,313,804.40/13,326.37
  6. Step 6: Final answer
    x = 10,153.84

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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.