Home / 13,333.52-18,399.36-7,365.20

Finding the Fourth Proportional to 13,333.52, 18,399.36 and 7,365.20

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Solution

The fourth proportional to 13,333.52, 18,399.36 and 7,365.20 is: 10,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.52 : 18,399.36 = 7,365.20 : x
  2. Step 2: Convert to fraction form
    13,333.52/18,399.36 = 7,365.20/x
  3. Step 3: Cross multiply
    13,333.52x = 18,399.36 × 7,365.20
  4. Step 4: Simplify right side
    13,333.52x = 135,514,966.27
  5. Step 5: Solve for x
    x = 135,514,966.27/13,333.52
  6. Step 6: Final answer
    x = 10,163.48

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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.