Home / 13,788.35-20,672.45-4,423.04

Finding the Fourth Proportional to 13,788.35, 20,672.45 and 4,423.04

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Solution

The fourth proportional to 13,788.35, 20,672.45 and 4,423.04 is: 6,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.35 : 20,672.45 = 4,423.04 : x
  2. Step 2: Convert to fraction form
    13,788.35/20,672.45 = 4,423.04/x
  3. Step 3: Cross multiply
    13,788.35x = 20,672.45 × 4,423.04
  4. Step 4: Simplify right side
    13,788.35x = 91,435,102.81
  5. Step 5: Solve for x
    x = 91,435,102.81/13,788.35
  6. Step 6: Final answer
    x = 6,631.33

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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.