Home / 9,749.12-13,453.74-5,272.88

Finding the Fourth Proportional to 9,749.12, 13,453.74 and 5,272.88

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Solution

The fourth proportional to 9,749.12, 13,453.74 and 5,272.88 is: 7,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,749.12 : 13,453.74 = 5,272.88 : x
  2. Step 2: Convert to fraction form
    9,749.12/13,453.74 = 5,272.88/x
  3. Step 3: Cross multiply
    9,749.12x = 13,453.74 × 5,272.88
  4. Step 4: Simplify right side
    9,749.12x = 70,939,889.30
  5. Step 5: Solve for x
    x = 70,939,889.30/9,749.12
  6. Step 6: Final answer
    x = 7,276.55

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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.