Home / 12,459.77-18,686.47-3,692.64

Finding the Fourth Proportional to 12,459.77, 18,686.47 and 3,692.64

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Solution

The fourth proportional to 12,459.77, 18,686.47 and 3,692.64 is: 5,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.77 : 18,686.47 = 3,692.64 : x
  2. Step 2: Convert to fraction form
    12,459.77/18,686.47 = 3,692.64/x
  3. Step 3: Cross multiply
    12,459.77x = 18,686.47 × 3,692.64
  4. Step 4: Simplify right side
    12,459.77x = 69,002,406.58
  5. Step 5: Solve for x
    x = 69,002,406.58/12,459.77
  6. Step 6: Final answer
    x = 5,538.02

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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.