Home / 14,269.42-19,692.51-8,220.57

Finding the Fourth Proportional to 14,269.42, 19,692.51 and 8,220.57

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Solution

The fourth proportional to 14,269.42, 19,692.51 and 8,220.57 is: 11,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.42 : 19,692.51 = 8,220.57 : x
  2. Step 2: Convert to fraction form
    14,269.42/19,692.51 = 8,220.57/x
  3. Step 3: Cross multiply
    14,269.42x = 19,692.51 × 8,220.57
  4. Step 4: Simplify right side
    14,269.42x = 161,883,552.26
  5. Step 5: Solve for x
    x = 161,883,552.26/14,269.42
  6. Step 6: Final answer
    x = 11,344.79

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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.