Home / 12,195.84-16,830.72-6,891.24

Finding the Fourth Proportional to 12,195.84, 16,830.72 and 6,891.24

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Solution

The fourth proportional to 12,195.84, 16,830.72 and 6,891.24 is: 9,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.84 : 16,830.72 = 6,891.24 : x
  2. Step 2: Convert to fraction form
    12,195.84/16,830.72 = 6,891.24/x
  3. Step 3: Cross multiply
    12,195.84x = 16,830.72 × 6,891.24
  4. Step 4: Simplify right side
    12,195.84x = 115,984,530.89
  5. Step 5: Solve for x
    x = 115,984,530.89/12,195.84
  6. Step 6: Final answer
    x = 9,510.17

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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.