Home / 12,470.30-18,706.41-3,705.20

Finding the Fourth Proportional to 12,470.30, 18,706.41 and 3,705.20

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Solution

The fourth proportional to 12,470.30, 18,706.41 and 3,705.20 is: 5,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.30 : 18,706.41 = 3,705.20 : x
  2. Step 2: Convert to fraction form
    12,470.30/18,706.41 = 3,705.20/x
  3. Step 3: Cross multiply
    12,470.30x = 18,706.41 × 3,705.20
  4. Step 4: Simplify right side
    12,470.30x = 69,310,896.80
  5. Step 5: Solve for x
    x = 69,310,896.80/12,470.30
  6. Step 6: Final answer
    x = 5,558.08

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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.