Home / 12,318.18-16,998.28-7,012.95

Finding the Fourth Proportional to 12,318.18, 16,998.28 and 7,012.95

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Solution

The fourth proportional to 12,318.18, 16,998.28 and 7,012.95 is: 9,677.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.18 : 16,998.28 = 7,012.95 : x
  2. Step 2: Convert to fraction form
    12,318.18/16,998.28 = 7,012.95/x
  3. Step 3: Cross multiply
    12,318.18x = 16,998.28 × 7,012.95
  4. Step 4: Simplify right side
    12,318.18x = 119,208,087.73
  5. Step 5: Solve for x
    x = 119,208,087.73/12,318.18
  6. Step 6: Final answer
    x = 9,677.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.