Home / 9,876.03-13,628.85-5,399.70

Finding the Fourth Proportional to 9,876.03, 13,628.85 and 5,399.70

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Solution

The fourth proportional to 9,876.03, 13,628.85 and 5,399.70 is: 7,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.03 : 13,628.85 = 5,399.70 : x
  2. Step 2: Convert to fraction form
    9,876.03/13,628.85 = 5,399.70/x
  3. Step 3: Cross multiply
    9,876.03x = 13,628.85 × 5,399.70
  4. Step 4: Simplify right side
    9,876.03x = 73,591,701.35
  5. Step 5: Solve for x
    x = 73,591,701.35/9,876.03
  6. Step 6: Final answer
    x = 7,451.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.