Home / 13,268.67-18,311.26-7,300.79

Finding the Fourth Proportional to 13,268.67, 18,311.26 and 7,300.79

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Solution

The fourth proportional to 13,268.67, 18,311.26 and 7,300.79 is: 10,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.67 : 18,311.26 = 7,300.79 : x
  2. Step 2: Convert to fraction form
    13,268.67/18,311.26 = 7,300.79/x
  3. Step 3: Cross multiply
    13,268.67x = 18,311.26 × 7,300.79
  4. Step 4: Simplify right side
    13,268.67x = 133,686,663.90
  5. Step 5: Solve for x
    x = 133,686,663.90/13,268.67
  6. Step 6: Final answer
    x = 10,075.36

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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.