Home / 13,268.87-18,311.33-7,300.85

Finding the Fourth Proportional to 13,268.87, 18,311.33 and 7,300.85

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Solution

The fourth proportional to 13,268.87, 18,311.33 and 7,300.85 is: 10,075.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.87 : 18,311.33 = 7,300.85 : x
  2. Step 2: Convert to fraction form
    13,268.87/18,311.33 = 7,300.85/x
  3. Step 3: Cross multiply
    13,268.87x = 18,311.33 × 7,300.85
  4. Step 4: Simplify right side
    13,268.87x = 133,688,237.13
  5. Step 5: Solve for x
    x = 133,688,237.13/13,268.87
  6. Step 6: Final answer
    x = 10,075.33

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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.