Home / 10,751.90-16,128.60-4,505.63

Finding the Fourth Proportional to 10,751.90, 16,128.60 and 4,505.63

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Solution

The fourth proportional to 10,751.90, 16,128.60 and 4,505.63 is: 6,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,751.90 : 16,128.60 = 4,505.63 : x
  2. Step 2: Convert to fraction form
    10,751.90/16,128.60 = 4,505.63/x
  3. Step 3: Cross multiply
    10,751.90x = 16,128.60 × 4,505.63
  4. Step 4: Simplify right side
    10,751.90x = 72,669,504.02
  5. Step 5: Solve for x
    x = 72,669,504.02/10,751.90
  6. Step 6: Final answer
    x = 6,758.76

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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.