Home / 9,125.21-13,685.75-4,190.11

Finding the Fourth Proportional to 9,125.21, 13,685.75 and 4,190.11

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Solution

The fourth proportional to 9,125.21, 13,685.75 and 4,190.11 is: 6,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.21 : 13,685.75 = 4,190.11 : x
  2. Step 2: Convert to fraction form
    9,125.21/13,685.75 = 4,190.11/x
  3. Step 3: Cross multiply
    9,125.21x = 13,685.75 × 4,190.11
  4. Step 4: Simplify right side
    9,125.21x = 57,344,742.77
  5. Step 5: Solve for x
    x = 57,344,742.77/9,125.21
  6. Step 6: Final answer
    x = 6,284.21

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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.