Home / 13,078.30-19,615.52-4,313.30

Finding the Fourth Proportional to 13,078.30, 19,615.52 and 4,313.30

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Solution

The fourth proportional to 13,078.30, 19,615.52 and 4,313.30 is: 6,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.30 : 19,615.52 = 4,313.30 : x
  2. Step 2: Convert to fraction form
    13,078.30/19,615.52 = 4,313.30/x
  3. Step 3: Cross multiply
    13,078.30x = 19,615.52 × 4,313.30
  4. Step 4: Simplify right side
    13,078.30x = 84,607,622.42
  5. Step 5: Solve for x
    x = 84,607,622.42/13,078.30
  6. Step 6: Final answer
    x = 6,469.31

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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.