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Finding the Fourth Proportional to 12,281.56, 16,948.68 and 6,692.56

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Solution

The fourth proportional to 12,281.56, 16,948.68 and 6,692.56 is: 9,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.56 : 16,948.68 = 6,692.56 : x
  2. Step 2: Convert to fraction form
    12,281.56/16,948.68 = 6,692.56/x
  3. Step 3: Cross multiply
    12,281.56x = 16,948.68 × 6,692.56
  4. Step 4: Simplify right side
    12,281.56x = 113,430,057.82
  5. Step 5: Solve for x
    x = 113,430,057.82/12,281.56
  6. Step 6: Final answer
    x = 9,235.80

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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.