Home / 9,627.75-13,284.69-5,378.64

Finding the Fourth Proportional to 9,627.75, 13,284.69 and 5,378.64

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Solution

The fourth proportional to 9,627.75, 13,284.69 and 5,378.64 is: 7,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,627.75 : 13,284.69 = 5,378.64 : x
  2. Step 2: Convert to fraction form
    9,627.75/13,284.69 = 5,378.64/x
  3. Step 3: Cross multiply
    9,627.75x = 13,284.69 × 5,378.64
  4. Step 4: Simplify right side
    9,627.75x = 71,453,565.02
  5. Step 5: Solve for x
    x = 71,453,565.02/9,627.75
  6. Step 6: Final answer
    x = 7,421.63

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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.