Home / 13,782.65-20,680.80-5,462.48

Finding the Fourth Proportional to 13,782.65, 20,680.80 and 5,462.48

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Solution

The fourth proportional to 13,782.65, 20,680.80 and 5,462.48 is: 8,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.65 : 20,680.80 = 5,462.48 : x
  2. Step 2: Convert to fraction form
    13,782.65/20,680.80 = 5,462.48/x
  3. Step 3: Cross multiply
    13,782.65x = 20,680.80 × 5,462.48
  4. Step 4: Simplify right side
    13,782.65x = 112,968,352.98
  5. Step 5: Solve for x
    x = 112,968,352.98/13,782.65
  6. Step 6: Final answer
    x = 8,196.42

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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.