Home / 7,681.50-11,535.21-6,994.62

Finding the Fourth Proportional to 7,681.50, 11,535.21 and 6,994.62

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Solution

The fourth proportional to 7,681.50, 11,535.21 and 6,994.62 is: 10,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.50 : 11,535.21 = 6,994.62 : x
  2. Step 2: Convert to fraction form
    7,681.50/11,535.21 = 6,994.62/x
  3. Step 3: Cross multiply
    7,681.50x = 11,535.21 × 6,994.62
  4. Step 4: Simplify right side
    7,681.50x = 80,684,410.57
  5. Step 5: Solve for x
    x = 80,684,410.57/7,681.50
  6. Step 6: Final answer
    x = 10,503.73

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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.