Home / 8,861.08-13,289.80-3,313.40

Finding the Fourth Proportional to 8,861.08, 13,289.80 and 3,313.40

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Solution

The fourth proportional to 8,861.08, 13,289.80 and 3,313.40 is: 4,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.08 : 13,289.80 = 3,313.40 : x
  2. Step 2: Convert to fraction form
    8,861.08/13,289.80 = 3,313.40/x
  3. Step 3: Cross multiply
    8,861.08x = 13,289.80 × 3,313.40
  4. Step 4: Simplify right side
    8,861.08x = 44,034,423.32
  5. Step 5: Solve for x
    x = 44,034,423.32/8,861.08
  6. Step 6: Final answer
    x = 4,969.42

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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.