Home / 13,268.82-18,311.28-7,300.64

Finding the Fourth Proportional to 13,268.82, 18,311.28 and 7,300.64

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Solution

The fourth proportional to 13,268.82, 18,311.28 and 7,300.64 is: 10,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.82 : 18,311.28 = 7,300.64 : x
  2. Step 2: Convert to fraction form
    13,268.82/18,311.28 = 7,300.64/x
  3. Step 3: Cross multiply
    13,268.82x = 18,311.28 × 7,300.64
  4. Step 4: Simplify right side
    13,268.82x = 133,683,944.29
  5. Step 5: Solve for x
    x = 133,683,944.29/13,268.82
  6. Step 6: Final answer
    x = 10,075.05

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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.