Home / 12,415.36-18,624.80-3,650.88

Finding the Fourth Proportional to 12,415.36, 18,624.80 and 3,650.88

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Solution

The fourth proportional to 12,415.36, 18,624.80 and 3,650.88 is: 5,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.36 : 18,624.80 = 3,650.88 : x
  2. Step 2: Convert to fraction form
    12,415.36/18,624.80 = 3,650.88/x
  3. Step 3: Cross multiply
    12,415.36x = 18,624.80 × 3,650.88
  4. Step 4: Simplify right side
    12,415.36x = 67,996,909.82
  5. Step 5: Solve for x
    x = 67,996,909.82/12,415.36
  6. Step 6: Final answer
    x = 5,476.84

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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.