Home / 9,839.63-13,578.69-5,423.63

Finding the Fourth Proportional to 9,839.63, 13,578.69 and 5,423.63

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Solution

The fourth proportional to 9,839.63, 13,578.69 and 5,423.63 is: 7,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,839.63 : 13,578.69 = 5,423.63 : x
  2. Step 2: Convert to fraction form
    9,839.63/13,578.69 = 5,423.63/x
  3. Step 3: Cross multiply
    9,839.63x = 13,578.69 × 5,423.63
  4. Step 4: Simplify right side
    9,839.63x = 73,645,790.44
  5. Step 5: Solve for x
    x = 73,645,790.44/9,839.63
  6. Step 6: Final answer
    x = 7,484.61

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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.