Home / 13,238.12-18,268.02-7,269.80

Finding the Fourth Proportional to 13,238.12, 18,268.02 and 7,269.80

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Solution

The fourth proportional to 13,238.12, 18,268.02 and 7,269.80 is: 10,032.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.12 : 18,268.02 = 7,269.80 : x
  2. Step 2: Convert to fraction form
    13,238.12/18,268.02 = 7,269.80/x
  3. Step 3: Cross multiply
    13,238.12x = 18,268.02 × 7,269.80
  4. Step 4: Simplify right side
    13,238.12x = 132,804,851.80
  5. Step 5: Solve for x
    x = 132,804,851.80/13,238.12
  6. Step 6: Final answer
    x = 10,032.00

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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.