Home / 13,283.79-19,926.90-3,423.10

Finding the Fourth Proportional to 13,283.79, 19,926.90 and 3,423.10

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Solution

The fourth proportional to 13,283.79, 19,926.90 and 3,423.10 is: 5,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.79 : 19,926.90 = 3,423.10 : x
  2. Step 2: Convert to fraction form
    13,283.79/19,926.90 = 3,423.10/x
  3. Step 3: Cross multiply
    13,283.79x = 19,926.90 × 3,423.10
  4. Step 4: Simplify right side
    13,283.79x = 68,211,771.39
  5. Step 5: Solve for x
    x = 68,211,771.39/13,283.79
  6. Step 6: Final answer
    x = 5,134.96

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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.