Home / 13,237.80-18,268.35-7,270

Finding the Fourth Proportional to 13,237.80, 18,268.35 and 7,270

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Solution

The fourth proportional to 13,237.80, 18,268.35 and 7,270 is: 10,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.80 : 18,268.35 = 7,270 : x
  2. Step 2: Convert to fraction form
    13,237.80/18,268.35 = 7,270/x
  3. Step 3: Cross multiply
    13,237.80x = 18,268.35 × 7,270
  4. Step 4: Simplify right side
    13,237.80x = 132,810,904.50
  5. Step 5: Solve for x
    x = 132,810,904.50/13,237.80
  6. Step 6: Final answer
    x = 10,032.71

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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.