Home / 13,634.18-20,448.23-5,314.42

Finding the Fourth Proportional to 13,634.18, 20,448.23 and 5,314.42

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Solution

The fourth proportional to 13,634.18, 20,448.23 and 5,314.42 is: 7,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.18 : 20,448.23 = 5,314.42 : x
  2. Step 2: Convert to fraction form
    13,634.18/20,448.23 = 5,314.42/x
  3. Step 3: Cross multiply
    13,634.18x = 20,448.23 × 5,314.42
  4. Step 4: Simplify right side
    13,634.18x = 108,670,482.48
  5. Step 5: Solve for x
    x = 108,670,482.48/13,634.18
  6. Step 6: Final answer
    x = 7,970.45

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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.