Home / 15,940.80-23,911.20-4,847.40

Finding the Fourth Proportional to 15,940.80, 23,911.20 and 4,847.40

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Solution

The fourth proportional to 15,940.80, 23,911.20 and 4,847.40 is: 7,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.80 : 23,911.20 = 4,847.40 : x
  2. Step 2: Convert to fraction form
    15,940.80/23,911.20 = 4,847.40/x
  3. Step 3: Cross multiply
    15,940.80x = 23,911.20 × 4,847.40
  4. Step 4: Simplify right side
    15,940.80x = 115,907,150.88
  5. Step 5: Solve for x
    x = 115,907,150.88/15,940.80
  6. Step 6: Final answer
    x = 7,271.10

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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.