Home / 12,539.36-18,813.72-6,692.72

Finding the Fourth Proportional to 12,539.36, 18,813.72 and 6,692.72

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Solution

The fourth proportional to 12,539.36, 18,813.72 and 6,692.72 is: 10,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.36 : 18,813.72 = 6,692.72 : x
  2. Step 2: Convert to fraction form
    12,539.36/18,813.72 = 6,692.72/x
  3. Step 3: Cross multiply
    12,539.36x = 18,813.72 × 6,692.72
  4. Step 4: Simplify right side
    12,539.36x = 125,914,960.12
  5. Step 5: Solve for x
    x = 125,914,960.12/12,539.36
  6. Step 6: Final answer
    x = 10,041.58

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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.