Home / 12,712.52-19,063.92-4,390.99

Finding the Fourth Proportional to 12,712.52, 19,063.92 and 4,390.99

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Solution

The fourth proportional to 12,712.52, 19,063.92 and 4,390.99 is: 6,584.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.52 : 19,063.92 = 4,390.99 : x
  2. Step 2: Convert to fraction form
    12,712.52/19,063.92 = 4,390.99/x
  3. Step 3: Cross multiply
    12,712.52x = 19,063.92 × 4,390.99
  4. Step 4: Simplify right side
    12,712.52x = 83,709,482.08
  5. Step 5: Solve for x
    x = 83,709,482.08/12,712.52
  6. Step 6: Final answer
    x = 6,584.81

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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.