Home / 11,583.90-15,986.79-9,692.15

Finding the Fourth Proportional to 11,583.90, 15,986.79 and 9,692.15

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Solution

The fourth proportional to 11,583.90, 15,986.79 and 9,692.15 is: 13,376.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.90 : 15,986.79 = 9,692.15 : x
  2. Step 2: Convert to fraction form
    11,583.90/15,986.79 = 9,692.15/x
  3. Step 3: Cross multiply
    11,583.90x = 15,986.79 × 9,692.15
  4. Step 4: Simplify right side
    11,583.90x = 154,946,286.76
  5. Step 5: Solve for x
    x = 154,946,286.76/11,583.90
  6. Step 6: Final answer
    x = 13,376.00

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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.