Home / 7,477.92-11,211.66-3,315.64

Finding the Fourth Proportional to 7,477.92, 11,211.66 and 3,315.64

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Solution

The fourth proportional to 7,477.92, 11,211.66 and 3,315.64 is: 4,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.92 : 11,211.66 = 3,315.64 : x
  2. Step 2: Convert to fraction form
    7,477.92/11,211.66 = 3,315.64/x
  3. Step 3: Cross multiply
    7,477.92x = 11,211.66 × 3,315.64
  4. Step 4: Simplify right side
    7,477.92x = 37,173,828.36
  5. Step 5: Solve for x
    x = 37,173,828.36/7,477.92
  6. Step 6: Final answer
    x = 4,971.15

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1.5x scale

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.