Home / 14,135.38-21,200.33-4,272.35

Finding the Fourth Proportional to 14,135.38, 21,200.33 and 4,272.35

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Solution

The fourth proportional to 14,135.38, 21,200.33 and 4,272.35 is: 6,407.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.38 : 21,200.33 = 4,272.35 : x
  2. Step 2: Convert to fraction form
    14,135.38/21,200.33 = 4,272.35/x
  3. Step 3: Cross multiply
    14,135.38x = 21,200.33 × 4,272.35
  4. Step 4: Simplify right side
    14,135.38x = 90,575,134.55
  5. Step 5: Solve for x
    x = 90,575,134.55/14,135.38
  6. Step 6: Final answer
    x = 6,407.69

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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.