Home / 12,556.84-17,328.42-6,891.62

Finding the Fourth Proportional to 12,556.84, 17,328.42 and 6,891.62

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Solution

The fourth proportional to 12,556.84, 17,328.42 and 6,891.62 is: 9,510.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.84 : 17,328.42 = 6,891.62 : x
  2. Step 2: Convert to fraction form
    12,556.84/17,328.42 = 6,891.62/x
  3. Step 3: Cross multiply
    12,556.84x = 17,328.42 × 6,891.62
  4. Step 4: Simplify right side
    12,556.84x = 119,420,885.84
  5. Step 5: Solve for x
    x = 119,420,885.84/12,556.84
  6. Step 6: Final answer
    x = 9,510.43

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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.