Home / 8,460.46-12,693.70-3,780.04

Finding the Fourth Proportional to 8,460.46, 12,693.70 and 3,780.04

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Solution

The fourth proportional to 8,460.46, 12,693.70 and 3,780.04 is: 5,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.46 : 12,693.70 = 3,780.04 : x
  2. Step 2: Convert to fraction form
    8,460.46/12,693.70 = 3,780.04/x
  3. Step 3: Cross multiply
    8,460.46x = 12,693.70 × 3,780.04
  4. Step 4: Simplify right side
    8,460.46x = 47,982,693.75
  5. Step 5: Solve for x
    x = 47,982,693.75/8,460.46
  6. Step 6: Final answer
    x = 5,671.40

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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.