Home / 13,245.81-19,850.24-9,955.05

Finding the Fourth Proportional to 13,245.81, 19,850.24 and 9,955.05

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Solution

The fourth proportional to 13,245.81, 19,850.24 and 9,955.05 is: 14,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.81 : 19,850.24 = 9,955.05 : x
  2. Step 2: Convert to fraction form
    13,245.81/19,850.24 = 9,955.05/x
  3. Step 3: Cross multiply
    13,245.81x = 19,850.24 × 9,955.05
  4. Step 4: Simplify right side
    13,245.81x = 197,610,081.94
  5. Step 5: Solve for x
    x = 197,610,081.94/13,245.81
  6. Step 6: Final answer
    x = 14,918.69

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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.