Home / 12,634.88-18,953.28-3,870.44

Finding the Fourth Proportional to 12,634.88, 18,953.28 and 3,870.44

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Solution

The fourth proportional to 12,634.88, 18,953.28 and 3,870.44 is: 5,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.88 : 18,953.28 = 3,870.44 : x
  2. Step 2: Convert to fraction form
    12,634.88/18,953.28 = 3,870.44/x
  3. Step 3: Cross multiply
    12,634.88x = 18,953.28 × 3,870.44
  4. Step 4: Simplify right side
    12,634.88x = 73,357,533.04
  5. Step 5: Solve for x
    x = 73,357,533.04/12,634.88
  6. Step 6: Final answer
    x = 5,805.95

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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.