Home / 16,806.47-25,209.71-5,119.70

Finding the Fourth Proportional to 16,806.47, 25,209.71 and 5,119.70

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Solution

The fourth proportional to 16,806.47, 25,209.71 and 5,119.70 is: 7,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,806.47 : 25,209.71 = 5,119.70 : x
  2. Step 2: Convert to fraction form
    16,806.47/25,209.71 = 5,119.70/x
  3. Step 3: Cross multiply
    16,806.47x = 25,209.71 × 5,119.70
  4. Step 4: Simplify right side
    16,806.47x = 129,066,000.64
  5. Step 5: Solve for x
    x = 129,066,000.64/16,806.47
  6. Step 6: Final answer
    x = 7,679.54

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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.