Home / 9,151.58-13,728.08-2,911.34

Finding the Fourth Proportional to 9,151.58, 13,728.08 and 2,911.34

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Solution

The fourth proportional to 9,151.58, 13,728.08 and 2,911.34 is: 4,367.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.58 : 13,728.08 = 2,911.34 : x
  2. Step 2: Convert to fraction form
    9,151.58/13,728.08 = 2,911.34/x
  3. Step 3: Cross multiply
    9,151.58x = 13,728.08 × 2,911.34
  4. Step 4: Simplify right side
    9,151.58x = 39,967,150.03
  5. Step 5: Solve for x
    x = 39,967,150.03/9,151.58
  6. Step 6: Final answer
    x = 4,367.24

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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.