Home / 12,415.34-18,631.91-4,517.84

Finding the Fourth Proportional to 12,415.34, 18,631.91 and 4,517.84

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Solution

The fourth proportional to 12,415.34, 18,631.91 and 4,517.84 is: 6,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.34 : 18,631.91 = 4,517.84 : x
  2. Step 2: Convert to fraction form
    12,415.34/18,631.91 = 4,517.84/x
  3. Step 3: Cross multiply
    12,415.34x = 18,631.91 × 4,517.84
  4. Step 4: Simplify right side
    12,415.34x = 84,175,965.69
  5. Step 5: Solve for x
    x = 84,175,965.69/12,415.34
  6. Step 6: Final answer
    x = 6,780.00

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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.