Home / 9,876.32-13,629.33-5,400.08

Finding the Fourth Proportional to 9,876.32, 13,629.33 and 5,400.08

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Solution

The fourth proportional to 9,876.32, 13,629.33 and 5,400.08 is: 7,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.32 : 13,629.33 = 5,400.08 : x
  2. Step 2: Convert to fraction form
    9,876.32/13,629.33 = 5,400.08/x
  3. Step 3: Cross multiply
    9,876.32x = 13,629.33 × 5,400.08
  4. Step 4: Simplify right side
    9,876.32x = 73,599,472.35
  5. Step 5: Solve for x
    x = 73,599,472.35/9,876.32
  6. Step 6: Final answer
    x = 7,452.11

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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.