Home / 11,583.75-15,986.66-6,615.75

Finding the Fourth Proportional to 11,583.75, 15,986.66 and 6,615.75

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Solution

The fourth proportional to 11,583.75, 15,986.66 and 6,615.75 is: 9,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.75 : 15,986.66 = 6,615.75 : x
  2. Step 2: Convert to fraction form
    11,583.75/15,986.66 = 6,615.75/x
  3. Step 3: Cross multiply
    11,583.75x = 15,986.66 × 6,615.75
  4. Step 4: Simplify right side
    11,583.75x = 105,763,712.82
  5. Step 5: Solve for x
    x = 105,763,712.82/11,583.75
  6. Step 6: Final answer
    x = 9,130.35

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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.