Home / 12,887.28-19,329.48-3,653.04

Finding the Fourth Proportional to 12,887.28, 19,329.48 and 3,653.04

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Solution

The fourth proportional to 12,887.28, 19,329.48 and 3,653.04 is: 5,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.28 : 19,329.48 = 3,653.04 : x
  2. Step 2: Convert to fraction form
    12,887.28/19,329.48 = 3,653.04/x
  3. Step 3: Cross multiply
    12,887.28x = 19,329.48 × 3,653.04
  4. Step 4: Simplify right side
    12,887.28x = 70,611,363.62
  5. Step 5: Solve for x
    x = 70,611,363.62/12,887.28
  6. Step 6: Final answer
    x = 5,479.15

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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.