Home / 9,213.24-13,819.50-2,639.40

Finding the Fourth Proportional to 9,213.24, 13,819.50 and 2,639.40

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Solution

The fourth proportional to 9,213.24, 13,819.50 and 2,639.40 is: 3,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.24 : 13,819.50 = 2,639.40 : x
  2. Step 2: Convert to fraction form
    9,213.24/13,819.50 = 2,639.40/x
  3. Step 3: Cross multiply
    9,213.24x = 13,819.50 × 2,639.40
  4. Step 4: Simplify right side
    9,213.24x = 36,475,188.30
  5. Step 5: Solve for x
    x = 36,475,188.30/9,213.24
  6. Step 6: Final answer
    x = 3,959.00

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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.