Home / 12,634.40-18,948.84-7,358.24

Finding the Fourth Proportional to 12,634.40, 18,948.84 and 7,358.24

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Solution

The fourth proportional to 12,634.40, 18,948.84 and 7,358.24 is: 11,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.40 : 18,948.84 = 7,358.24 : x
  2. Step 2: Convert to fraction form
    12,634.40/18,948.84 = 7,358.24/x
  3. Step 3: Cross multiply
    12,634.40x = 18,948.84 × 7,358.24
  4. Step 4: Simplify right side
    12,634.40x = 139,430,112.44
  5. Step 5: Solve for x
    x = 139,430,112.44/12,634.40
  6. Step 6: Final answer
    x = 11,035.75

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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.