Home / 15,766.34-21,758.49-8,692.74

Finding the Fourth Proportional to 15,766.34, 21,758.49 and 8,692.74

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Solution

The fourth proportional to 15,766.34, 21,758.49 and 8,692.74 is: 11,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.34 : 21,758.49 = 8,692.74 : x
  2. Step 2: Convert to fraction form
    15,766.34/21,758.49 = 8,692.74/x
  3. Step 3: Cross multiply
    15,766.34x = 21,758.49 × 8,692.74
  4. Step 4: Simplify right side
    15,766.34x = 189,140,896.36
  5. Step 5: Solve for x
    x = 189,140,896.36/15,766.34
  6. Step 6: Final answer
    x = 11,996.50

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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.