Home / 13,237.24-18,266.20-7,268.78

Finding the Fourth Proportional to 13,237.24, 18,266.20 and 7,268.78

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Solution

The fourth proportional to 13,237.24, 18,266.20 and 7,268.78 is: 10,030.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.24 : 18,266.20 = 7,268.78 : x
  2. Step 2: Convert to fraction form
    13,237.24/18,266.20 = 7,268.78/x
  3. Step 3: Cross multiply
    13,237.24x = 18,266.20 × 7,268.78
  4. Step 4: Simplify right side
    13,237.24x = 132,772,879.73
  5. Step 5: Solve for x
    x = 132,772,879.73/13,237.24
  6. Step 6: Final answer
    x = 10,030.26

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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.