Home / 11,078.86-15,289.74-6,300.30

Finding the Fourth Proportional to 11,078.86, 15,289.74 and 6,300.30

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Solution

The fourth proportional to 11,078.86, 15,289.74 and 6,300.30 is: 8,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.86 : 15,289.74 = 6,300.30 : x
  2. Step 2: Convert to fraction form
    11,078.86/15,289.74 = 6,300.30/x
  3. Step 3: Cross multiply
    11,078.86x = 15,289.74 × 6,300.30
  4. Step 4: Simplify right side
    11,078.86x = 96,329,917.42
  5. Step 5: Solve for x
    x = 96,329,917.42/11,078.86
  6. Step 6: Final answer
    x = 8,694.93

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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.