Home / 13,268.30-18,311.01-7,300.11

Finding the Fourth Proportional to 13,268.30, 18,311.01 and 7,300.11

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Solution

The fourth proportional to 13,268.30, 18,311.01 and 7,300.11 is: 10,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.30 : 18,311.01 = 7,300.11 : x
  2. Step 2: Convert to fraction form
    13,268.30/18,311.01 = 7,300.11/x
  3. Step 3: Cross multiply
    13,268.30x = 18,311.01 × 7,300.11
  4. Step 4: Simplify right side
    13,268.30x = 133,672,387.21
  5. Step 5: Solve for x
    x = 133,672,387.21/13,268.30
  6. Step 6: Final answer
    x = 10,074.57

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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.