Home / 13,218.22-19,830.33-4,452.90

Finding the Fourth Proportional to 13,218.22, 19,830.33 and 4,452.90

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Solution

The fourth proportional to 13,218.22, 19,830.33 and 4,452.90 is: 6,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.22 : 19,830.33 = 4,452.90 : x
  2. Step 2: Convert to fraction form
    13,218.22/19,830.33 = 4,452.90/x
  3. Step 3: Cross multiply
    13,218.22x = 19,830.33 × 4,452.90
  4. Step 4: Simplify right side
    13,218.22x = 88,302,410.18
  5. Step 5: Solve for x
    x = 88,302,410.18/13,218.22
  6. Step 6: Final answer
    x = 6,680.35

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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.