Home / 18,790.83-25,919.96-12,417.48

Finding the Fourth Proportional to 18,790.83, 25,919.96 and 12,417.48

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Solution

The fourth proportional to 18,790.83, 25,919.96 and 12,417.48 is: 17,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.83 : 25,919.96 = 12,417.48 : x
  2. Step 2: Convert to fraction form
    18,790.83/25,919.96 = 12,417.48/x
  3. Step 3: Cross multiply
    18,790.83x = 25,919.96 × 12,417.48
  4. Step 4: Simplify right side
    18,790.83x = 321,860,522.81
  5. Step 5: Solve for x
    x = 321,860,522.81/18,790.83
  6. Step 6: Final answer
    x = 17,128.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.