Home / 13,437.36-18,543.68-7,469.68

Finding the Fourth Proportional to 13,437.36, 18,543.68 and 7,469.68

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Solution

The fourth proportional to 13,437.36, 18,543.68 and 7,469.68 is: 10,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.36 : 18,543.68 = 7,469.68 : x
  2. Step 2: Convert to fraction form
    13,437.36/18,543.68 = 7,469.68/x
  3. Step 3: Cross multiply
    13,437.36x = 18,543.68 × 7,469.68
  4. Step 4: Simplify right side
    13,437.36x = 138,515,355.62
  5. Step 5: Solve for x
    x = 138,515,355.62/13,437.36
  6. Step 6: Final answer
    x = 10,308.23

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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.