Home / 13,725.12-20,587.44-4,491.12

Finding the Fourth Proportional to 13,725.12, 20,587.44 and 4,491.12

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Solution

The fourth proportional to 13,725.12, 20,587.44 and 4,491.12 is: 6,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.12 : 20,587.44 = 4,491.12 : x
  2. Step 2: Convert to fraction form
    13,725.12/20,587.44 = 4,491.12/x
  3. Step 3: Cross multiply
    13,725.12x = 20,587.44 × 4,491.12
  4. Step 4: Simplify right side
    13,725.12x = 92,460,663.53
  5. Step 5: Solve for x
    x = 92,460,663.53/13,725.12
  6. Step 6: Final answer
    x = 6,736.60

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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.