Home / 13,708.41-20,563.64-7,783.00

Finding the Fourth Proportional to 13,708.41, 20,563.64 and 7,783.00

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Solution

The fourth proportional to 13,708.41, 20,563.64 and 7,783.00 is: 11,675.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.41 : 20,563.64 = 7,783.00 : x
  2. Step 2: Convert to fraction form
    13,708.41/20,563.64 = 7,783.00/x
  3. Step 3: Cross multiply
    13,708.41x = 20,563.64 × 7,783.00
  4. Step 4: Simplify right side
    13,708.41x = 160,046,864.65
  5. Step 5: Solve for x
    x = 160,046,864.65/13,708.41
  6. Step 6: Final answer
    x = 11,675.09

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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.