Home / 12,645.36-18,967.92-4,859.60

Finding the Fourth Proportional to 12,645.36, 18,967.92 and 4,859.60

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Solution

The fourth proportional to 12,645.36, 18,967.92 and 4,859.60 is: 7,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.36 : 18,967.92 = 4,859.60 : x
  2. Step 2: Convert to fraction form
    12,645.36/18,967.92 = 4,859.60/x
  3. Step 3: Cross multiply
    12,645.36x = 18,967.92 × 4,859.60
  4. Step 4: Simplify right side
    12,645.36x = 92,176,504.03
  5. Step 5: Solve for x
    x = 92,176,504.03/12,645.36
  6. Step 6: Final answer
    x = 7,289.35

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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.