Home / 11,078.65-16,621.10-4,509.55

Finding the Fourth Proportional to 11,078.65, 16,621.10 and 4,509.55

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Solution

The fourth proportional to 11,078.65, 16,621.10 and 4,509.55 is: 6,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.65 : 16,621.10 = 4,509.55 : x
  2. Step 2: Convert to fraction form
    11,078.65/16,621.10 = 4,509.55/x
  3. Step 3: Cross multiply
    11,078.65x = 16,621.10 × 4,509.55
  4. Step 4: Simplify right side
    11,078.65x = 74,953,651.23
  5. Step 5: Solve for x
    x = 74,953,651.23/11,078.65
  6. Step 6: Final answer
    x = 6,765.60

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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.