Home / 7,987.54-11,022.33-4,630.09

Finding the Fourth Proportional to 7,987.54, 11,022.33 and 4,630.09

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Solution

The fourth proportional to 7,987.54, 11,022.33 and 4,630.09 is: 6,389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.54 : 11,022.33 = 4,630.09 : x
  2. Step 2: Convert to fraction form
    7,987.54/11,022.33 = 4,630.09/x
  3. Step 3: Cross multiply
    7,987.54x = 11,022.33 × 4,630.09
  4. Step 4: Simplify right side
    7,987.54x = 51,034,379.91
  5. Step 5: Solve for x
    x = 51,034,379.91/7,987.54
  6. Step 6: Final answer
    x = 6,389.25

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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.