Home / 11,455.50-17,177.72-4,430.37

Finding the Fourth Proportional to 11,455.50, 17,177.72 and 4,430.37

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Solution

The fourth proportional to 11,455.50, 17,177.72 and 4,430.37 is: 6,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.50 : 17,177.72 = 4,430.37 : x
  2. Step 2: Convert to fraction form
    11,455.50/17,177.72 = 4,430.37/x
  3. Step 3: Cross multiply
    11,455.50x = 17,177.72 × 4,430.37
  4. Step 4: Simplify right side
    11,455.50x = 76,103,633.20
  5. Step 5: Solve for x
    x = 76,103,633.20/11,455.50
  6. Step 6: Final answer
    x = 6,643.41

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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.