Home / 9,629.44-13,288.64-5,438.50

Finding the Fourth Proportional to 9,629.44, 13,288.64 and 5,438.50

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Solution

The fourth proportional to 9,629.44, 13,288.64 and 5,438.50 is: 7,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,629.44 : 13,288.64 = 5,438.50 : x
  2. Step 2: Convert to fraction form
    9,629.44/13,288.64 = 5,438.50/x
  3. Step 3: Cross multiply
    9,629.44x = 13,288.64 × 5,438.50
  4. Step 4: Simplify right side
    9,629.44x = 72,270,208.23
  5. Step 5: Solve for x
    x = 72,270,208.23/9,629.44
  6. Step 6: Final answer
    x = 7,505.13

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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.