Home / 9,765.80-13,476.68-5,289.44

Finding the Fourth Proportional to 9,765.80, 13,476.68 and 5,289.44

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Solution

The fourth proportional to 9,765.80, 13,476.68 and 5,289.44 is: 7,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.80 : 13,476.68 = 5,289.44 : x
  2. Step 2: Convert to fraction form
    9,765.80/13,476.68 = 5,289.44/x
  3. Step 3: Cross multiply
    9,765.80x = 13,476.68 × 5,289.44
  4. Step 4: Simplify right side
    9,765.80x = 71,284,016.26
  5. Step 5: Solve for x
    x = 71,284,016.26/9,765.80
  6. Step 6: Final answer
    x = 7,299.35

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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.