Home / 13,237.37-18,267.62-7,187.62

Finding the Fourth Proportional to 13,237.37, 18,267.62 and 7,187.62

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Solution

The fourth proportional to 13,237.37, 18,267.62 and 7,187.62 is: 9,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.37 : 18,267.62 = 7,187.62 : x
  2. Step 2: Convert to fraction form
    13,237.37/18,267.62 = 7,187.62/x
  3. Step 3: Cross multiply
    13,237.37x = 18,267.62 × 7,187.62
  4. Step 4: Simplify right side
    13,237.37x = 131,300,710.86
  5. Step 5: Solve for x
    x = 131,300,710.86/13,237.37
  6. Step 6: Final answer
    x = 9,918.94

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Double scale
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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.