Home / 7,563.98-11,315.45-6,776.21

Finding the Fourth Proportional to 7,563.98, 11,315.45 and 6,776.21

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Solution

The fourth proportional to 7,563.98, 11,315.45 and 6,776.21 is: 10,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.98 : 11,315.45 = 6,776.21 : x
  2. Step 2: Convert to fraction form
    7,563.98/11,315.45 = 6,776.21/x
  3. Step 3: Cross multiply
    7,563.98x = 11,315.45 × 6,776.21
  4. Step 4: Simplify right side
    7,563.98x = 76,675,808.91
  5. Step 5: Solve for x
    x = 76,675,808.91/7,563.98
  6. Step 6: Final answer
    x = 10,136.96

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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.