Home / 13,820.27-19,074.42-8,154.68

Finding the Fourth Proportional to 13,820.27, 19,074.42 and 8,154.68

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Solution

The fourth proportional to 13,820.27, 19,074.42 and 8,154.68 is: 11,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.27 : 19,074.42 = 8,154.68 : x
  2. Step 2: Convert to fraction form
    13,820.27/19,074.42 = 8,154.68/x
  3. Step 3: Cross multiply
    13,820.27x = 19,074.42 × 8,154.68
  4. Step 4: Simplify right side
    13,820.27x = 155,545,791.29
  5. Step 5: Solve for x
    x = 155,545,791.29/13,820.27
  6. Step 6: Final answer
    x = 11,254.90

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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.