Home / 10,711.50-14,788.35-6,991.98

Finding the Fourth Proportional to 10,711.50, 14,788.35 and 6,991.98

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Solution

The fourth proportional to 10,711.50, 14,788.35 and 6,991.98 is: 9,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.50 : 14,788.35 = 6,991.98 : x
  2. Step 2: Convert to fraction form
    10,711.50/14,788.35 = 6,991.98/x
  3. Step 3: Cross multiply
    10,711.50x = 14,788.35 × 6,991.98
  4. Step 4: Simplify right side
    10,711.50x = 103,399,847.43
  5. Step 5: Solve for x
    x = 103,399,847.43/10,711.50
  6. Step 6: Final answer
    x = 9,653.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.