Home / 13,268.80-18,311.23-7,301.02

Finding the Fourth Proportional to 13,268.80, 18,311.23 and 7,301.02

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Solution

The fourth proportional to 13,268.80, 18,311.23 and 7,301.02 is: 10,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.80 : 18,311.23 = 7,301.02 : x
  2. Step 2: Convert to fraction form
    13,268.80/18,311.23 = 7,301.02/x
  3. Step 3: Cross multiply
    13,268.80x = 18,311.23 × 7,301.02
  4. Step 4: Simplify right side
    13,268.80x = 133,690,656.45
  5. Step 5: Solve for x
    x = 133,690,656.45/13,268.80
  6. Step 6: Final answer
    x = 10,075.56

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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.