Home / 18,445.21-25,424.04-13,069.45

Finding the Fourth Proportional to 18,445.21, 25,424.04 and 13,069.45

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Solution

The fourth proportional to 18,445.21, 25,424.04 and 13,069.45 is: 18,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.21 : 25,424.04 = 13,069.45 : x
  2. Step 2: Convert to fraction form
    18,445.21/25,424.04 = 13,069.45/x
  3. Step 3: Cross multiply
    18,445.21x = 25,424.04 × 13,069.45
  4. Step 4: Simplify right side
    18,445.21x = 332,278,219.58
  5. Step 5: Solve for x
    x = 332,278,219.58/18,445.21
  6. Step 6: Final answer
    x = 18,014.34

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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.