Home / 15,984.69-23,978.16-4,890.53

Finding the Fourth Proportional to 15,984.69, 23,978.16 and 4,890.53

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Solution

The fourth proportional to 15,984.69, 23,978.16 and 4,890.53 is: 7,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984.69 : 23,978.16 = 4,890.53 : x
  2. Step 2: Convert to fraction form
    15,984.69/23,978.16 = 4,890.53/x
  3. Step 3: Cross multiply
    15,984.69x = 23,978.16 × 4,890.53
  4. Step 4: Simplify right side
    15,984.69x = 117,265,790.93
  5. Step 5: Solve for x
    x = 117,265,790.93/15,984.69
  6. Step 6: Final answer
    x = 7,336.13

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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.