Home / 15,692.30-21,653.85-9,317.73

Finding the Fourth Proportional to 15,692.30, 21,653.85 and 9,317.73

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Solution

The fourth proportional to 15,692.30, 21,653.85 and 9,317.73 is: 12,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692.30 : 21,653.85 = 9,317.73 : x
  2. Step 2: Convert to fraction form
    15,692.30/21,653.85 = 9,317.73/x
  3. Step 3: Cross multiply
    15,692.30x = 21,653.85 × 9,317.73
  4. Step 4: Simplify right side
    15,692.30x = 201,764,727.76
  5. Step 5: Solve for x
    x = 201,764,727.76/15,692.30
  6. Step 6: Final answer
    x = 12,857.56

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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.