Home / 8,911.75-12,298.79-4,932.86

Finding the Fourth Proportional to 8,911.75, 12,298.79 and 4,932.86

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Solution

The fourth proportional to 8,911.75, 12,298.79 and 4,932.86 is: 6,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.75 : 12,298.79 = 4,932.86 : x
  2. Step 2: Convert to fraction form
    8,911.75/12,298.79 = 4,932.86/x
  3. Step 3: Cross multiply
    8,911.75x = 12,298.79 × 4,932.86
  4. Step 4: Simplify right side
    8,911.75x = 60,668,209.24
  5. Step 5: Solve for x
    x = 60,668,209.24/8,911.75
  6. Step 6: Final answer
    x = 6,807.67

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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.