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Finding the Fourth Proportional to 17,445.70, 26,158.93 and 5,434.59

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Solution

The fourth proportional to 17,445.70, 26,158.93 and 5,434.59 is: 8,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,445.70 : 26,158.93 = 5,434.59 : x
  2. Step 2: Convert to fraction form
    17,445.70/26,158.93 = 5,434.59/x
  3. Step 3: Cross multiply
    17,445.70x = 26,158.93 × 5,434.59
  4. Step 4: Simplify right side
    17,445.70x = 142,163,059.39
  5. Step 5: Solve for x
    x = 142,163,059.39/17,445.70
  6. Step 6: Final answer
    x = 8,148.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.