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Finding the Fourth Proportional to 17,420.52, 26,130.78 and 7,559.58

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Solution

The fourth proportional to 17,420.52, 26,130.78 and 7,559.58 is: 11,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420.52 : 26,130.78 = 7,559.58 : x
  2. Step 2: Convert to fraction form
    17,420.52/26,130.78 = 7,559.58/x
  3. Step 3: Cross multiply
    17,420.52x = 26,130.78 × 7,559.58
  4. Step 4: Simplify right side
    17,420.52x = 197,537,651.62
  5. Step 5: Solve for x
    x = 197,537,651.62/17,420.52
  6. Step 6: Final answer
    x = 11,339.37

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1.5x scale

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.