Home / 9,929.85-13,709.61-6,157.02

Finding the Fourth Proportional to 9,929.85, 13,709.61 and 6,157.02

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Solution

The fourth proportional to 9,929.85, 13,709.61 and 6,157.02 is: 8,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.85 : 13,709.61 = 6,157.02 : x
  2. Step 2: Convert to fraction form
    9,929.85/13,709.61 = 6,157.02/x
  3. Step 3: Cross multiply
    9,929.85x = 13,709.61 × 6,157.02
  4. Step 4: Simplify right side
    9,929.85x = 84,410,342.96
  5. Step 5: Solve for x
    x = 84,410,342.96/9,929.85
  6. Step 6: Final answer
    x = 8,500.67

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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.