Home / 13,313.96-18,368.97-8,838.57

Finding the Fourth Proportional to 13,313.96, 18,368.97 and 8,838.57

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Solution

The fourth proportional to 13,313.96, 18,368.97 and 8,838.57 is: 12,194.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.96 : 18,368.97 = 8,838.57 : x
  2. Step 2: Convert to fraction form
    13,313.96/18,368.97 = 8,838.57/x
  3. Step 3: Cross multiply
    13,313.96x = 18,368.97 × 8,838.57
  4. Step 4: Simplify right side
    13,313.96x = 162,355,405.08
  5. Step 5: Solve for x
    x = 162,355,405.08/13,313.96
  6. Step 6: Final answer
    x = 12,194.38

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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.