Home / 9,780.12-14,672.40-3,206.16

Finding the Fourth Proportional to 9,780.12, 14,672.40 and 3,206.16

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Solution

The fourth proportional to 9,780.12, 14,672.40 and 3,206.16 is: 4,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.12 : 14,672.40 = 3,206.16 : x
  2. Step 2: Convert to fraction form
    9,780.12/14,672.40 = 3,206.16/x
  3. Step 3: Cross multiply
    9,780.12x = 14,672.40 × 3,206.16
  4. Step 4: Simplify right side
    9,780.12x = 47,042,061.98
  5. Step 5: Solve for x
    x = 47,042,061.98/9,780.12
  6. Step 6: Final answer
    x = 4,809.97

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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.