Home / 13,336.84-20,022.54-8,416.36

Finding the Fourth Proportional to 13,336.84, 20,022.54 and 8,416.36

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Solution

The fourth proportional to 13,336.84, 20,022.54 and 8,416.36 is: 12,635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.84 : 20,022.54 = 8,416.36 : x
  2. Step 2: Convert to fraction form
    13,336.84/20,022.54 = 8,416.36/x
  3. Step 3: Cross multiply
    13,336.84x = 20,022.54 × 8,416.36
  4. Step 4: Simplify right side
    13,336.84x = 168,516,904.75
  5. Step 5: Solve for x
    x = 168,516,904.75/13,336.84
  6. Step 6: Final answer
    x = 12,635.44

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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.