Home / 11,309.16-16,966.20-3,518.60

Finding the Fourth Proportional to 11,309.16, 16,966.20 and 3,518.60

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Solution

The fourth proportional to 11,309.16, 16,966.20 and 3,518.60 is: 5,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.16 : 16,966.20 = 3,518.60 : x
  2. Step 2: Convert to fraction form
    11,309.16/16,966.20 = 3,518.60/x
  3. Step 3: Cross multiply
    11,309.16x = 16,966.20 × 3,518.60
  4. Step 4: Simplify right side
    11,309.16x = 59,697,271.32
  5. Step 5: Solve for x
    x = 59,697,271.32/11,309.16
  6. Step 6: Final answer
    x = 5,278.67

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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.