Home / 12,756.76-19,129.97-4,435.02

Finding the Fourth Proportional to 12,756.76, 19,129.97 and 4,435.02

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Solution

The fourth proportional to 12,756.76, 19,129.97 and 4,435.02 is: 6,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.76 : 19,129.97 = 4,435.02 : x
  2. Step 2: Convert to fraction form
    12,756.76/19,129.97 = 4,435.02/x
  3. Step 3: Cross multiply
    12,756.76x = 19,129.97 × 4,435.02
  4. Step 4: Simplify right side
    12,756.76x = 84,841,810.64
  5. Step 5: Solve for x
    x = 84,841,810.64/12,756.76
  6. Step 6: Final answer
    x = 6,650.73

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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.