Home / 7,818.11-11,729.90-3,435.91

Finding the Fourth Proportional to 7,818.11, 11,729.90 and 3,435.91

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Solution

The fourth proportional to 7,818.11, 11,729.90 and 3,435.91 is: 5,155.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.11 : 11,729.90 = 3,435.91 : x
  2. Step 2: Convert to fraction form
    7,818.11/11,729.90 = 3,435.91/x
  3. Step 3: Cross multiply
    7,818.11x = 11,729.90 × 3,435.91
  4. Step 4: Simplify right side
    7,818.11x = 40,302,880.71
  5. Step 5: Solve for x
    x = 40,302,880.71/7,818.11
  6. Step 6: Final answer
    x = 5,155.07

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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.