Home / 11,069.63-15,276.44-6,289.78

Finding the Fourth Proportional to 11,069.63, 15,276.44 and 6,289.78

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Solution

The fourth proportional to 11,069.63, 15,276.44 and 6,289.78 is: 8,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,069.63 : 15,276.44 = 6,289.78 : x
  2. Step 2: Convert to fraction form
    11,069.63/15,276.44 = 6,289.78/x
  3. Step 3: Cross multiply
    11,069.63x = 15,276.44 × 6,289.78
  4. Step 4: Simplify right side
    11,069.63x = 96,085,424.32
  5. Step 5: Solve for x
    x = 96,085,424.32/11,069.63
  6. Step 6: Final answer
    x = 8,680.09

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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.