Home / 12,630.03-18,947.78-4,838.85

Finding the Fourth Proportional to 12,630.03, 18,947.78 and 4,838.85

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Solution

The fourth proportional to 12,630.03, 18,947.78 and 4,838.85 is: 7,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.03 : 18,947.78 = 4,838.85 : x
  2. Step 2: Convert to fraction form
    12,630.03/18,947.78 = 4,838.85/x
  3. Step 3: Cross multiply
    12,630.03x = 18,947.78 × 4,838.85
  4. Step 4: Simplify right side
    12,630.03x = 91,685,370.51
  5. Step 5: Solve for x
    x = 91,685,370.51/12,630.03
  6. Step 6: Final answer
    x = 7,259.32

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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.