Home / 7,611.90-11,389.14-4,493.60

Finding the Fourth Proportional to 7,611.90, 11,389.14 and 4,493.60

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Solution

The fourth proportional to 7,611.90, 11,389.14 and 4,493.60 is: 6,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.90 : 11,389.14 = 4,493.60 : x
  2. Step 2: Convert to fraction form
    7,611.90/11,389.14 = 4,493.60/x
  3. Step 3: Cross multiply
    7,611.90x = 11,389.14 × 4,493.60
  4. Step 4: Simplify right side
    7,611.90x = 51,178,222.65
  5. Step 5: Solve for x
    x = 51,178,222.65/7,611.90
  6. Step 6: Final answer
    x = 6,723.45

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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.