Home / 11,159.30-15,399.14-6,122.50

Finding the Fourth Proportional to 11,159.30, 15,399.14 and 6,122.50

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Solution

The fourth proportional to 11,159.30, 15,399.14 and 6,122.50 is: 8,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.30 : 15,399.14 = 6,122.50 : x
  2. Step 2: Convert to fraction form
    11,159.30/15,399.14 = 6,122.50/x
  3. Step 3: Cross multiply
    11,159.30x = 15,399.14 × 6,122.50
  4. Step 4: Simplify right side
    11,159.30x = 94,281,234.65
  5. Step 5: Solve for x
    x = 94,281,234.65/11,159.30
  6. Step 6: Final answer
    x = 8,448.67

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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.