Home / 13,515.84-20,273.76-5,719.36

Finding the Fourth Proportional to 13,515.84, 20,273.76 and 5,719.36

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Solution

The fourth proportional to 13,515.84, 20,273.76 and 5,719.36 is: 8,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.84 : 20,273.76 = 5,719.36 : x
  2. Step 2: Convert to fraction form
    13,515.84/20,273.76 = 5,719.36/x
  3. Step 3: Cross multiply
    13,515.84x = 20,273.76 × 5,719.36
  4. Step 4: Simplify right side
    13,515.84x = 115,952,931.99
  5. Step 5: Solve for x
    x = 115,952,931.99/13,515.84
  6. Step 6: Final answer
    x = 8,579.04

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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.