Home / 7,987.93-11,017.87-4,630.80

Finding the Fourth Proportional to 7,987.93, 11,017.87 and 4,630.80

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Solution

The fourth proportional to 7,987.93, 11,017.87 and 4,630.80 is: 6,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.93 : 11,017.87 = 4,630.80 : x
  2. Step 2: Convert to fraction form
    7,987.93/11,017.87 = 4,630.80/x
  3. Step 3: Cross multiply
    7,987.93x = 11,017.87 × 4,630.80
  4. Step 4: Simplify right side
    7,987.93x = 51,021,555.64
  5. Step 5: Solve for x
    x = 51,021,555.64/7,987.93
  6. Step 6: Final answer
    x = 6,387.33

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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.