Home / 13,720.84-20,581.25-4,955.76

Finding the Fourth Proportional to 13,720.84, 20,581.25 and 4,955.76

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Solution

The fourth proportional to 13,720.84, 20,581.25 and 4,955.76 is: 7,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.84 : 20,581.25 = 4,955.76 : x
  2. Step 2: Convert to fraction form
    13,720.84/20,581.25 = 4,955.76/x
  3. Step 3: Cross multiply
    13,720.84x = 20,581.25 × 4,955.76
  4. Step 4: Simplify right side
    13,720.84x = 101,995,735.50
  5. Step 5: Solve for x
    x = 101,995,735.50/13,720.84
  6. Step 6: Final answer
    x = 7,433.64

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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.