Home / 11,423.45-15,764.27-6,387.68

Finding the Fourth Proportional to 11,423.45, 15,764.27 and 6,387.68

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Solution

The fourth proportional to 11,423.45, 15,764.27 and 6,387.68 is: 8,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.45 : 15,764.27 = 6,387.68 : x
  2. Step 2: Convert to fraction form
    11,423.45/15,764.27 = 6,387.68/x
  3. Step 3: Cross multiply
    11,423.45x = 15,764.27 × 6,387.68
  4. Step 4: Simplify right side
    11,423.45x = 100,697,001.43
  5. Step 5: Solve for x
    x = 100,697,001.43/11,423.45
  6. Step 6: Final answer
    x = 8,814.94

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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.