Home / 12,929.04-19,395.12-4,160.88

Finding the Fourth Proportional to 12,929.04, 19,395.12 and 4,160.88

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Solution

The fourth proportional to 12,929.04, 19,395.12 and 4,160.88 is: 6,241.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.04 : 19,395.12 = 4,160.88 : x
  2. Step 2: Convert to fraction form
    12,929.04/19,395.12 = 4,160.88/x
  3. Step 3: Cross multiply
    12,929.04x = 19,395.12 × 4,160.88
  4. Step 4: Simplify right side
    12,929.04x = 80,700,766.91
  5. Step 5: Solve for x
    x = 80,700,766.91/12,929.04
  6. Step 6: Final answer
    x = 6,241.82

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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.