Home / 15,811.46-23,715.60-4,124.70

Finding the Fourth Proportional to 15,811.46, 23,715.60 and 4,124.70

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Solution

The fourth proportional to 15,811.46, 23,715.60 and 4,124.70 is: 6,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.46 : 23,715.60 = 4,124.70 : x
  2. Step 2: Convert to fraction form
    15,811.46/23,715.60 = 4,124.70/x
  3. Step 3: Cross multiply
    15,811.46x = 23,715.60 × 4,124.70
  4. Step 4: Simplify right side
    15,811.46x = 97,819,735.32
  5. Step 5: Solve for x
    x = 97,819,735.32/15,811.46
  6. Step 6: Final answer
    x = 6,186.64

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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.