Home / 12,480.30-18,714.15-4,157.34

Finding the Fourth Proportional to 12,480.30, 18,714.15 and 4,157.34

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Solution

The fourth proportional to 12,480.30, 18,714.15 and 4,157.34 is: 6,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.30 : 18,714.15 = 4,157.34 : x
  2. Step 2: Convert to fraction form
    12,480.30/18,714.15 = 4,157.34/x
  3. Step 3: Cross multiply
    12,480.30x = 18,714.15 × 4,157.34
  4. Step 4: Simplify right side
    12,480.30x = 77,801,084.36
  5. Step 5: Solve for x
    x = 77,801,084.36/12,480.30
  6. Step 6: Final answer
    x = 6,233.91

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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.