Home / 13,445.57-20,169.14-4,085.91

Finding the Fourth Proportional to 13,445.57, 20,169.14 and 4,085.91

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Solution

The fourth proportional to 13,445.57, 20,169.14 and 4,085.91 is: 6,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.57 : 20,169.14 = 4,085.91 : x
  2. Step 2: Convert to fraction form
    13,445.57/20,169.14 = 4,085.91/x
  3. Step 3: Cross multiply
    13,445.57x = 20,169.14 × 4,085.91
  4. Step 4: Simplify right side
    13,445.57x = 82,409,270.39
  5. Step 5: Solve for x
    x = 82,409,270.39/13,445.57
  6. Step 6: Final answer
    x = 6,129.10

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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.