Home / 13,395.36-18,485.57-7,426.88

Finding the Fourth Proportional to 13,395.36, 18,485.57 and 7,426.88

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Solution

The fourth proportional to 13,395.36, 18,485.57 and 7,426.88 is: 10,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.36 : 18,485.57 = 7,426.88 : x
  2. Step 2: Convert to fraction form
    13,395.36/18,485.57 = 7,426.88/x
  3. Step 3: Cross multiply
    13,395.36x = 18,485.57 × 7,426.88
  4. Step 4: Simplify right side
    13,395.36x = 137,289,980.56
  5. Step 5: Solve for x
    x = 137,289,980.56/13,395.36
  6. Step 6: Final answer
    x = 10,249.07

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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.