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Finding the Fourth Proportional to 34,650.36, 51,978.82 and 9,690.40

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Solution

The fourth proportional to 34,650.36, 51,978.82 and 9,690.40 is: 14,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,650.36 : 51,978.82 = 9,690.40 : x
  2. Step 2: Convert to fraction form
    34,650.36/51,978.82 = 9,690.40/x
  3. Step 3: Cross multiply
    34,650.36x = 51,978.82 × 9,690.40
  4. Step 4: Simplify right side
    34,650.36x = 503,695,557.33
  5. Step 5: Solve for x
    x = 503,695,557.33/34,650.36
  6. Step 6: Final answer
    x = 14,536.52

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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.