Home / 15,692.68-21,624.64-11,203.80

Finding the Fourth Proportional to 15,692.68, 21,624.64 and 11,203.80

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Solution

The fourth proportional to 15,692.68, 21,624.64 and 11,203.80 is: 15,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692.68 : 21,624.64 = 11,203.80 : x
  2. Step 2: Convert to fraction form
    15,692.68/21,624.64 = 11,203.80/x
  3. Step 3: Cross multiply
    15,692.68x = 21,624.64 × 11,203.80
  4. Step 4: Simplify right side
    15,692.68x = 242,278,141.63
  5. Step 5: Solve for x
    x = 242,278,141.63/15,692.68
  6. Step 6: Final answer
    x = 15,438.93

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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.