Home / 12,139.74-18,203.40-5,900.04

Finding the Fourth Proportional to 12,139.74, 18,203.40 and 5,900.04

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Solution

The fourth proportional to 12,139.74, 18,203.40 and 5,900.04 is: 8,847.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139.74 : 18,203.40 = 5,900.04 : x
  2. Step 2: Convert to fraction form
    12,139.74/18,203.40 = 5,900.04/x
  3. Step 3: Cross multiply
    12,139.74x = 18,203.40 × 5,900.04
  4. Step 4: Simplify right side
    12,139.74x = 107,400,788.14
  5. Step 5: Solve for x
    x = 107,400,788.14/12,139.74
  6. Step 6: Final answer
    x = 8,847.04

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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.