Home / 13,266.34-19,899.60-6,319.78

Finding the Fourth Proportional to 13,266.34, 19,899.60 and 6,319.78

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Solution

The fourth proportional to 13,266.34, 19,899.60 and 6,319.78 is: 9,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.34 : 19,899.60 = 6,319.78 : x
  2. Step 2: Convert to fraction form
    13,266.34/19,899.60 = 6,319.78/x
  3. Step 3: Cross multiply
    13,266.34x = 19,899.60 × 6,319.78
  4. Step 4: Simplify right side
    13,266.34x = 125,761,094.09
  5. Step 5: Solve for x
    x = 125,761,094.09/13,266.34
  6. Step 6: Final answer
    x = 9,479.71

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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.