Home / 15,611.67-23,400.90-7,716.60

Finding the Fourth Proportional to 15,611.67, 23,400.90 and 7,716.60

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Solution

The fourth proportional to 15,611.67, 23,400.90 and 7,716.60 is: 11,566.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.67 : 23,400.90 = 7,716.60 : x
  2. Step 2: Convert to fraction form
    15,611.67/23,400.90 = 7,716.60/x
  3. Step 3: Cross multiply
    15,611.67x = 23,400.90 × 7,716.60
  4. Step 4: Simplify right side
    15,611.67x = 180,575,384.94
  5. Step 5: Solve for x
    x = 180,575,384.94/15,611.67
  6. Step 6: Final answer
    x = 11,566.69

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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.