Home / 13,253.42-19,880.12-3,392.69

Finding the Fourth Proportional to 13,253.42, 19,880.12 and 3,392.69

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Solution

The fourth proportional to 13,253.42, 19,880.12 and 3,392.69 is: 5,089.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.42 : 19,880.12 = 3,392.69 : x
  2. Step 2: Convert to fraction form
    13,253.42/19,880.12 = 3,392.69/x
  3. Step 3: Cross multiply
    13,253.42x = 19,880.12 × 3,392.69
  4. Step 4: Simplify right side
    13,253.42x = 67,446,993.40
  5. Step 5: Solve for x
    x = 67,446,993.40/13,253.42
  6. Step 6: Final answer
    x = 5,089.02

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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.