Home / 12,520.97-18,790.98-4,630.95

Finding the Fourth Proportional to 12,520.97, 18,790.98 and 4,630.95

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Solution

The fourth proportional to 12,520.97, 18,790.98 and 4,630.95 is: 6,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.97 : 18,790.98 = 4,630.95 : x
  2. Step 2: Convert to fraction form
    12,520.97/18,790.98 = 4,630.95/x
  3. Step 3: Cross multiply
    12,520.97x = 18,790.98 × 4,630.95
  4. Step 4: Simplify right side
    12,520.97x = 87,020,160.32
  5. Step 5: Solve for x
    x = 87,020,160.32/12,520.97
  6. Step 6: Final answer
    x = 6,949.95

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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.