Home / 13,268.89-18,311.43-7,300.63

Finding the Fourth Proportional to 13,268.89, 18,311.43 and 7,300.63

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Solution

The fourth proportional to 13,268.89, 18,311.43 and 7,300.63 is: 10,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.89 : 18,311.43 = 7,300.63 : x
  2. Step 2: Convert to fraction form
    13,268.89/18,311.43 = 7,300.63/x
  3. Step 3: Cross multiply
    13,268.89x = 18,311.43 × 7,300.63
  4. Step 4: Simplify right side
    13,268.89x = 133,684,975.20
  5. Step 5: Solve for x
    x = 133,684,975.20/13,268.89
  6. Step 6: Final answer
    x = 10,075.07

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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.