Home / 13,237.43-18,268.08-7,648.43

Finding the Fourth Proportional to 13,237.43, 18,268.08 and 7,648.43

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Solution

The fourth proportional to 13,237.43, 18,268.08 and 7,648.43 is: 10,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.43 : 18,268.08 = 7,648.43 : x
  2. Step 2: Convert to fraction form
    13,237.43/18,268.08 = 7,648.43/x
  3. Step 3: Cross multiply
    13,237.43x = 18,268.08 × 7,648.43
  4. Step 4: Simplify right side
    13,237.43x = 139,722,131.11
  5. Step 5: Solve for x
    x = 139,722,131.11/13,237.43
  6. Step 6: Final answer
    x = 10,555.08

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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.