Home / 9,538.80-13,163.29-5,289.79

Finding the Fourth Proportional to 9,538.80, 13,163.29 and 5,289.79

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Solution

The fourth proportional to 9,538.80, 13,163.29 and 5,289.79 is: 7,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,538.80 : 13,163.29 = 5,289.79 : x
  2. Step 2: Convert to fraction form
    9,538.80/13,163.29 = 5,289.79/x
  3. Step 3: Cross multiply
    9,538.80x = 13,163.29 × 5,289.79
  4. Step 4: Simplify right side
    9,538.80x = 69,630,973.99
  5. Step 5: Solve for x
    x = 69,630,973.99/9,538.80
  6. Step 6: Final answer
    x = 7,299.77

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1.5x scale

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.