Home / 9,270.48-13,908.60-3,428.40

Finding the Fourth Proportional to 9,270.48, 13,908.60 and 3,428.40

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Solution

The fourth proportional to 9,270.48, 13,908.60 and 3,428.40 is: 5,143.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.48 : 13,908.60 = 3,428.40 : x
  2. Step 2: Convert to fraction form
    9,270.48/13,908.60 = 3,428.40/x
  3. Step 3: Cross multiply
    9,270.48x = 13,908.60 × 3,428.40
  4. Step 4: Simplify right side
    9,270.48x = 47,684,244.24
  5. Step 5: Solve for x
    x = 47,684,244.24/9,270.48
  6. Step 6: Final answer
    x = 5,143.67

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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.