Home / 9,170.08-12,653.21-5,190.35

Finding the Fourth Proportional to 9,170.08, 12,653.21 and 5,190.35

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Solution

The fourth proportional to 9,170.08, 12,653.21 and 5,190.35 is: 7,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.08 : 12,653.21 = 5,190.35 : x
  2. Step 2: Convert to fraction form
    9,170.08/12,653.21 = 5,190.35/x
  3. Step 3: Cross multiply
    9,170.08x = 12,653.21 × 5,190.35
  4. Step 4: Simplify right side
    9,170.08x = 65,674,538.23
  5. Step 5: Solve for x
    x = 65,674,538.23/9,170.08
  6. Step 6: Final answer
    x = 7,161.83

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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.