Home / 13,326.52-18,390.16-7,358.44

Finding the Fourth Proportional to 13,326.52, 18,390.16 and 7,358.44

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Solution

The fourth proportional to 13,326.52, 18,390.16 and 7,358.44 is: 10,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.52 : 18,390.16 = 7,358.44 : x
  2. Step 2: Convert to fraction form
    13,326.52/18,390.16 = 7,358.44/x
  3. Step 3: Cross multiply
    13,326.52x = 18,390.16 × 7,358.44
  4. Step 4: Simplify right side
    13,326.52x = 135,322,888.95
  5. Step 5: Solve for x
    x = 135,322,888.95/13,326.52
  6. Step 6: Final answer
    x = 10,154.41

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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.