Home / 13,268.78-18,310.46-7,300.40

Finding the Fourth Proportional to 13,268.78, 18,310.46 and 7,300.40

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Solution

The fourth proportional to 13,268.78, 18,310.46 and 7,300.40 is: 10,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.78 : 18,310.46 = 7,300.40 : x
  2. Step 2: Convert to fraction form
    13,268.78/18,310.46 = 7,300.40/x
  3. Step 3: Cross multiply
    13,268.78x = 18,310.46 × 7,300.40
  4. Step 4: Simplify right side
    13,268.78x = 133,673,554.13
  5. Step 5: Solve for x
    x = 133,673,554.13/13,268.78
  6. Step 6: Final answer
    x = 10,074.30

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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.