Home / 7,818.42-11,711.90-3,652.68

Finding the Fourth Proportional to 7,818.42, 11,711.90 and 3,652.68

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Solution

The fourth proportional to 7,818.42, 11,711.90 and 3,652.68 is: 5,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.42 : 11,711.90 = 3,652.68 : x
  2. Step 2: Convert to fraction form
    7,818.42/11,711.90 = 3,652.68/x
  3. Step 3: Cross multiply
    7,818.42x = 11,711.90 × 3,652.68
  4. Step 4: Simplify right side
    7,818.42x = 42,779,822.89
  5. Step 5: Solve for x
    x = 42,779,822.89/7,818.42
  6. Step 6: Final answer
    x = 5,471.67

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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.