Home / 18,938.22-28,410.12-5,788.86

Finding the Fourth Proportional to 18,938.22, 28,410.12 and 5,788.86

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Solution

The fourth proportional to 18,938.22, 28,410.12 and 5,788.86 is: 8,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.22 : 28,410.12 = 5,788.86 : x
  2. Step 2: Convert to fraction form
    18,938.22/28,410.12 = 5,788.86/x
  3. Step 3: Cross multiply
    18,938.22x = 28,410.12 × 5,788.86
  4. Step 4: Simplify right side
    18,938.22x = 164,462,207.26
  5. Step 5: Solve for x
    x = 164,462,207.26/18,938.22
  6. Step 6: Final answer
    x = 8,684.14

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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.