Home / 12,692.81-19,039.65-4,372.76

Finding the Fourth Proportional to 12,692.81, 19,039.65 and 4,372.76

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Solution

The fourth proportional to 12,692.81, 19,039.65 and 4,372.76 is: 6,559.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.81 : 19,039.65 = 4,372.76 : x
  2. Step 2: Convert to fraction form
    12,692.81/19,039.65 = 4,372.76/x
  3. Step 3: Cross multiply
    12,692.81x = 19,039.65 × 4,372.76
  4. Step 4: Simplify right side
    12,692.81x = 83,255,819.93
  5. Step 5: Solve for x
    x = 83,255,819.93/12,692.81
  6. Step 6: Final answer
    x = 6,559.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.