Home / 9,878.38-13,633.44-5,630.97

Finding the Fourth Proportional to 9,878.38, 13,633.44 and 5,630.97

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Solution

The fourth proportional to 9,878.38, 13,633.44 and 5,630.97 is: 7,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.38 : 13,633.44 = 5,630.97 : x
  2. Step 2: Convert to fraction form
    9,878.38/13,633.44 = 5,630.97/x
  3. Step 3: Cross multiply
    9,878.38x = 13,633.44 × 5,630.97
  4. Step 4: Simplify right side
    9,878.38x = 76,769,423.47
  5. Step 5: Solve for x
    x = 76,769,423.47/9,878.38
  6. Step 6: Final answer
    x = 7,771.46

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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.