Home / 17,420.64-26,134.10-6,342.89

Finding the Fourth Proportional to 17,420.64, 26,134.10 and 6,342.89

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Solution

The fourth proportional to 17,420.64, 26,134.10 and 6,342.89 is: 9,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420.64 : 26,134.10 = 6,342.89 : x
  2. Step 2: Convert to fraction form
    17,420.64/26,134.10 = 6,342.89/x
  3. Step 3: Cross multiply
    17,420.64x = 26,134.10 × 6,342.89
  4. Step 4: Simplify right side
    17,420.64x = 165,765,559.16
  5. Step 5: Solve for x
    x = 165,765,559.16/17,420.64
  6. Step 6: Final answer
    x = 9,515.47

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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.