Home / 11,317.88-16,980.06-5,477.78

Finding the Fourth Proportional to 11,317.88, 16,980.06 and 5,477.78

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Solution

The fourth proportional to 11,317.88, 16,980.06 and 5,477.78 is: 8,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.88 : 16,980.06 = 5,477.78 : x
  2. Step 2: Convert to fraction form
    11,317.88/16,980.06 = 5,477.78/x
  3. Step 3: Cross multiply
    11,317.88x = 16,980.06 × 5,477.78
  4. Step 4: Simplify right side
    11,317.88x = 93,013,096.06
  5. Step 5: Solve for x
    x = 93,013,096.06/11,317.88
  6. Step 6: Final answer
    x = 8,218.24

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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.