Home / 7,986.71-11,015.80-5,293.06

Finding the Fourth Proportional to 7,986.71, 11,015.80 and 5,293.06

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Solution

The fourth proportional to 7,986.71, 11,015.80 and 5,293.06 is: 7,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.71 : 11,015.80 = 5,293.06 : x
  2. Step 2: Convert to fraction form
    7,986.71/11,015.80 = 5,293.06/x
  3. Step 3: Cross multiply
    7,986.71x = 11,015.80 × 5,293.06
  4. Step 4: Simplify right side
    7,986.71x = 58,307,249.58
  5. Step 5: Solve for x
    x = 58,307,249.58/7,986.71
  6. Step 6: Final answer
    x = 7,300.53

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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.