Home / 9,479.36-13,080.48-6,680

Finding the Fourth Proportional to 9,479.36, 13,080.48 and 6,680

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Solution

The fourth proportional to 9,479.36, 13,080.48 and 6,680 is: 9,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.36 : 13,080.48 = 6,680 : x
  2. Step 2: Convert to fraction form
    9,479.36/13,080.48 = 6,680/x
  3. Step 3: Cross multiply
    9,479.36x = 13,080.48 × 6,680
  4. Step 4: Simplify right side
    9,479.36x = 87,377,606.40
  5. Step 5: Solve for x
    x = 87,377,606.40/9,479.36
  6. Step 6: Final answer
    x = 9,217.67

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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.