Home / 9,780.49-14,669.25-3,206.53

Finding the Fourth Proportional to 9,780.49, 14,669.25 and 3,206.53

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Solution

The fourth proportional to 9,780.49, 14,669.25 and 3,206.53 is: 4,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.49 : 14,669.25 = 3,206.53 : x
  2. Step 2: Convert to fraction form
    9,780.49/14,669.25 = 3,206.53/x
  3. Step 3: Cross multiply
    9,780.49x = 14,669.25 × 3,206.53
  4. Step 4: Simplify right side
    9,780.49x = 47,037,390.20
  5. Step 5: Solve for x
    x = 47,037,390.20/9,780.49
  6. Step 6: Final answer
    x = 4,809.31

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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.