Home / 13,620.24-20,426.40-4,850.40

Finding the Fourth Proportional to 13,620.24, 20,426.40 and 4,850.40

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Solution

The fourth proportional to 13,620.24, 20,426.40 and 4,850.40 is: 7,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.24 : 20,426.40 = 4,850.40 : x
  2. Step 2: Convert to fraction form
    13,620.24/20,426.40 = 4,850.40/x
  3. Step 3: Cross multiply
    13,620.24x = 20,426.40 × 4,850.40
  4. Step 4: Simplify right side
    13,620.24x = 99,076,210.56
  5. Step 5: Solve for x
    x = 99,076,210.56/13,620.24
  6. Step 6: Final answer
    x = 7,274.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.