Home / 8,172.93-11,278.53-5,029.05

Finding the Fourth Proportional to 8,172.93, 11,278.53 and 5,029.05

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Solution

The fourth proportional to 8,172.93, 11,278.53 and 5,029.05 is: 6,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.93 : 11,278.53 = 5,029.05 : x
  2. Step 2: Convert to fraction form
    8,172.93/11,278.53 = 5,029.05/x
  3. Step 3: Cross multiply
    8,172.93x = 11,278.53 × 5,029.05
  4. Step 4: Simplify right side
    8,172.93x = 56,720,291.30
  5. Step 5: Solve for x
    x = 56,720,291.30/8,172.93
  6. Step 6: Final answer
    x = 6,940.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.