Home / 8,836.24-13,247.70-7,618

Finding the Fourth Proportional to 8,836.24, 13,247.70 and 7,618

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Solution

The fourth proportional to 8,836.24, 13,247.70 and 7,618 is: 11,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.24 : 13,247.70 = 7,618 : x
  2. Step 2: Convert to fraction form
    8,836.24/13,247.70 = 7,618/x
  3. Step 3: Cross multiply
    8,836.24x = 13,247.70 × 7,618
  4. Step 4: Simplify right side
    8,836.24x = 100,920,978.60
  5. Step 5: Solve for x
    x = 100,920,978.60/8,836.24
  6. Step 6: Final answer
    x = 11,421.26

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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.