Home / 13,519.79-20,288.73-4,754.67

Finding the Fourth Proportional to 13,519.79, 20,288.73 and 4,754.67

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Solution

The fourth proportional to 13,519.79, 20,288.73 and 4,754.67 is: 7,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.79 : 20,288.73 = 4,754.67 : x
  2. Step 2: Convert to fraction form
    13,519.79/20,288.73 = 4,754.67/x
  3. Step 3: Cross multiply
    13,519.79x = 20,288.73 × 4,754.67
  4. Step 4: Simplify right side
    13,519.79x = 96,466,192.10
  5. Step 5: Solve for x
    x = 96,466,192.10/13,519.79
  6. Step 6: Final answer
    x = 7,135.18

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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.