Home / 10,749.38-16,128.16-4,176.07

Finding the Fourth Proportional to 10,749.38, 16,128.16 and 4,176.07

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Solution

The fourth proportional to 10,749.38, 16,128.16 and 4,176.07 is: 6,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.38 : 16,128.16 = 4,176.07 : x
  2. Step 2: Convert to fraction form
    10,749.38/16,128.16 = 4,176.07/x
  3. Step 3: Cross multiply
    10,749.38x = 16,128.16 × 4,176.07
  4. Step 4: Simplify right side
    10,749.38x = 67,352,388.58
  5. Step 5: Solve for x
    x = 67,352,388.58/10,749.38
  6. Step 6: Final answer
    x = 6,265.70

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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.