Home / 13,216.03-18,237.72-7,247.60

Finding the Fourth Proportional to 13,216.03, 18,237.72 and 7,247.60

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Solution

The fourth proportional to 13,216.03, 18,237.72 and 7,247.60 is: 10,001.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.03 : 18,237.72 = 7,247.60 : x
  2. Step 2: Convert to fraction form
    13,216.03/18,237.72 = 7,247.60/x
  3. Step 3: Cross multiply
    13,216.03x = 18,237.72 × 7,247.60
  4. Step 4: Simplify right side
    13,216.03x = 132,179,699.47
  5. Step 5: Solve for x
    x = 132,179,699.47/13,216.03
  6. Step 6: Final answer
    x = 10,001.47

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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.