Home / 12,250.14-16,905.36-9,178.55

Finding the Fourth Proportional to 12,250.14, 16,905.36 and 9,178.55

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Solution

The fourth proportional to 12,250.14, 16,905.36 and 9,178.55 is: 12,666.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.14 : 16,905.36 = 9,178.55 : x
  2. Step 2: Convert to fraction form
    12,250.14/16,905.36 = 9,178.55/x
  3. Step 3: Cross multiply
    12,250.14x = 16,905.36 × 9,178.55
  4. Step 4: Simplify right side
    12,250.14x = 155,166,692.03
  5. Step 5: Solve for x
    x = 155,166,692.03/12,250.14
  6. Step 6: Final answer
    x = 12,666.52

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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.