Home / 37,098.58-55,651.32-12,138.78

Finding the Fourth Proportional to 37,098.58, 55,651.32 and 12,138.78

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Solution

The fourth proportional to 37,098.58, 55,651.32 and 12,138.78 is: 18,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,098.58 : 55,651.32 = 12,138.78 : x
  2. Step 2: Convert to fraction form
    37,098.58/55,651.32 = 12,138.78/x
  3. Step 3: Cross multiply
    37,098.58x = 55,651.32 × 12,138.78
  4. Step 4: Simplify right side
    37,098.58x = 675,539,130.19
  5. Step 5: Solve for x
    x = 675,539,130.19/37,098.58
  6. Step 6: Final answer
    x = 18,209.30

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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.