Home / 13,237.56-18,268.02-7,269.78

Finding the Fourth Proportional to 13,237.56, 18,268.02 and 7,269.78

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Solution

The fourth proportional to 13,237.56, 18,268.02 and 7,269.78 is: 10,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.56 : 18,268.02 = 7,269.78 : x
  2. Step 2: Convert to fraction form
    13,237.56/18,268.02 = 7,269.78/x
  3. Step 3: Cross multiply
    13,237.56x = 18,268.02 × 7,269.78
  4. Step 4: Simplify right side
    13,237.56x = 132,804,486.44
  5. Step 5: Solve for x
    x = 132,804,486.44/13,237.56
  6. Step 6: Final answer
    x = 10,032.40

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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.