Home / 13,245.36-18,277.02-7,939.32

Finding the Fourth Proportional to 13,245.36, 18,277.02 and 7,939.32

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Solution

The fourth proportional to 13,245.36, 18,277.02 and 7,939.32 is: 10,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.36 : 18,277.02 = 7,939.32 : x
  2. Step 2: Convert to fraction form
    13,245.36/18,277.02 = 7,939.32/x
  3. Step 3: Cross multiply
    13,245.36x = 18,277.02 × 7,939.32
  4. Step 4: Simplify right side
    13,245.36x = 145,107,110.43
  5. Step 5: Solve for x
    x = 145,107,110.43/13,245.36
  6. Step 6: Final answer
    x = 10,955.32

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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.