Home / 10,629.06-15,940.85-4,390.85

Finding the Fourth Proportional to 10,629.06, 15,940.85 and 4,390.85

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Solution

The fourth proportional to 10,629.06, 15,940.85 and 4,390.85 is: 6,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.06 : 15,940.85 = 4,390.85 : x
  2. Step 2: Convert to fraction form
    10,629.06/15,940.85 = 4,390.85/x
  3. Step 3: Cross multiply
    10,629.06x = 15,940.85 × 4,390.85
  4. Step 4: Simplify right side
    10,629.06x = 69,993,779.56
  5. Step 5: Solve for x
    x = 69,993,779.56/10,629.06
  6. Step 6: Final answer
    x = 6,585.13

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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.