Home / 13,887.96-20,823.58-5,335.57

Finding the Fourth Proportional to 13,887.96, 20,823.58 and 5,335.57

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Solution

The fourth proportional to 13,887.96, 20,823.58 and 5,335.57 is: 8,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.96 : 20,823.58 = 5,335.57 : x
  2. Step 2: Convert to fraction form
    13,887.96/20,823.58 = 5,335.57/x
  3. Step 3: Cross multiply
    13,887.96x = 20,823.58 × 5,335.57
  4. Step 4: Simplify right side
    13,887.96x = 111,105,701.44
  5. Step 5: Solve for x
    x = 111,105,701.44/13,887.96
  6. Step 6: Final answer
    x = 8,000.15

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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.