Home / 11,729.04-16,185.50-6,423.88

Finding the Fourth Proportional to 11,729.04, 16,185.50 and 6,423.88

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Solution

The fourth proportional to 11,729.04, 16,185.50 and 6,423.88 is: 8,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.04 : 16,185.50 = 6,423.88 : x
  2. Step 2: Convert to fraction form
    11,729.04/16,185.50 = 6,423.88/x
  3. Step 3: Cross multiply
    11,729.04x = 16,185.50 × 6,423.88
  4. Step 4: Simplify right side
    11,729.04x = 103,973,709.74
  5. Step 5: Solve for x
    x = 103,973,709.74/11,729.04
  6. Step 6: Final answer
    x = 8,864.64

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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.