Home / 12,192.14-16,828.63-7,156.58

Finding the Fourth Proportional to 12,192.14, 16,828.63 and 7,156.58

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Solution

The fourth proportional to 12,192.14, 16,828.63 and 7,156.58 is: 9,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.14 : 16,828.63 = 7,156.58 : x
  2. Step 2: Convert to fraction form
    12,192.14/16,828.63 = 7,156.58/x
  3. Step 3: Cross multiply
    12,192.14x = 16,828.63 × 7,156.58
  4. Step 4: Simplify right side
    12,192.14x = 120,435,334.85
  5. Step 5: Solve for x
    x = 120,435,334.85/12,192.14
  6. Step 6: Final answer
    x = 9,878.11

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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.