Home / 8,355.21-11,529.30-4,998.70

Finding the Fourth Proportional to 8,355.21, 11,529.30 and 4,998.70

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Solution

The fourth proportional to 8,355.21, 11,529.30 and 4,998.70 is: 6,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.21 : 11,529.30 = 4,998.70 : x
  2. Step 2: Convert to fraction form
    8,355.21/11,529.30 = 4,998.70/x
  3. Step 3: Cross multiply
    8,355.21x = 11,529.30 × 4,998.70
  4. Step 4: Simplify right side
    8,355.21x = 57,631,511.91
  5. Step 5: Solve for x
    x = 57,631,511.91/8,355.21
  6. Step 6: Final answer
    x = 6,897.67

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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.