Home / 11,818.61-17,711.20-6,555.94

Finding the Fourth Proportional to 11,818.61, 17,711.20 and 6,555.94

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Solution

The fourth proportional to 11,818.61, 17,711.20 and 6,555.94 is: 9,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.61 : 17,711.20 = 6,555.94 : x
  2. Step 2: Convert to fraction form
    11,818.61/17,711.20 = 6,555.94/x
  3. Step 3: Cross multiply
    11,818.61x = 17,711.20 × 6,555.94
  4. Step 4: Simplify right side
    11,818.61x = 116,113,503.86
  5. Step 5: Solve for x
    x = 116,113,503.86/11,818.61
  6. Step 6: Final answer
    x = 9,824.64

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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.