Home / 16,860.43-25,288.48-5,172.67

Finding the Fourth Proportional to 16,860.43, 25,288.48 and 5,172.67

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Solution

The fourth proportional to 16,860.43, 25,288.48 and 5,172.67 is: 7,758.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,860.43 : 25,288.48 = 5,172.67 : x
  2. Step 2: Convert to fraction form
    16,860.43/25,288.48 = 5,172.67/x
  3. Step 3: Cross multiply
    16,860.43x = 25,288.48 × 5,172.67
  4. Step 4: Simplify right side
    16,860.43x = 130,808,961.84
  5. Step 5: Solve for x
    x = 130,808,961.84/16,860.43
  6. Step 6: Final answer
    x = 7,758.34

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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.