Home / 13,860.85-20,790.63-5,095.12

Finding the Fourth Proportional to 13,860.85, 20,790.63 and 5,095.12

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Solution

The fourth proportional to 13,860.85, 20,790.63 and 5,095.12 is: 7,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.85 : 20,790.63 = 5,095.12 : x
  2. Step 2: Convert to fraction form
    13,860.85/20,790.63 = 5,095.12/x
  3. Step 3: Cross multiply
    13,860.85x = 20,790.63 × 5,095.12
  4. Step 4: Simplify right side
    13,860.85x = 105,930,754.73
  5. Step 5: Solve for x
    x = 105,930,754.73/13,860.85
  6. Step 6: Final answer
    x = 7,642.44

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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.