Home / 12,677.94-19,016.91-9,900.45

Finding the Fourth Proportional to 12,677.94, 19,016.91 and 9,900.45

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Solution

The fourth proportional to 12,677.94, 19,016.91 and 9,900.45 is: 14,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.94 : 19,016.91 = 9,900.45 : x
  2. Step 2: Convert to fraction form
    12,677.94/19,016.91 = 9,900.45/x
  3. Step 3: Cross multiply
    12,677.94x = 19,016.91 × 9,900.45
  4. Step 4: Simplify right side
    12,677.94x = 188,275,966.61
  5. Step 5: Solve for x
    x = 188,275,966.61/12,677.94
  6. Step 6: Final answer
    x = 14,850.68

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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.