Home / 9,627.09-13,285.22-5,378.22

Finding the Fourth Proportional to 9,627.09, 13,285.22 and 5,378.22

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Solution

The fourth proportional to 9,627.09, 13,285.22 and 5,378.22 is: 7,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,627.09 : 13,285.22 = 5,378.22 : x
  2. Step 2: Convert to fraction form
    9,627.09/13,285.22 = 5,378.22/x
  3. Step 3: Cross multiply
    9,627.09x = 13,285.22 × 5,378.22
  4. Step 4: Simplify right side
    9,627.09x = 71,450,849.35
  5. Step 5: Solve for x
    x = 71,450,849.35/9,627.09
  6. Step 6: Final answer
    x = 7,421.85

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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.