Home / 8,695.36-13,043.09-3,147.67

Finding the Fourth Proportional to 8,695.36, 13,043.09 and 3,147.67

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Solution

The fourth proportional to 8,695.36, 13,043.09 and 3,147.67 is: 4,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.36 : 13,043.09 = 3,147.67 : x
  2. Step 2: Convert to fraction form
    8,695.36/13,043.09 = 3,147.67/x
  3. Step 3: Cross multiply
    8,695.36x = 13,043.09 × 3,147.67
  4. Step 4: Simplify right side
    8,695.36x = 41,055,343.10
  5. Step 5: Solve for x
    x = 41,055,343.10/8,695.36
  6. Step 6: Final answer
    x = 4,721.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.