Home / 9,678.20-14,519.38-4,131.64

Finding the Fourth Proportional to 9,678.20, 14,519.38 and 4,131.64

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Solution

The fourth proportional to 9,678.20, 14,519.38 and 4,131.64 is: 6,198.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.20 : 14,519.38 = 4,131.64 : x
  2. Step 2: Convert to fraction form
    9,678.20/14,519.38 = 4,131.64/x
  3. Step 3: Cross multiply
    9,678.20x = 14,519.38 × 4,131.64
  4. Step 4: Simplify right side
    9,678.20x = 59,988,851.18
  5. Step 5: Solve for x
    x = 59,988,851.18/9,678.20
  6. Step 6: Final answer
    x = 6,198.35

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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.