Home / 9,150.30-13,728.33-5,456.70

Finding the Fourth Proportional to 9,150.30, 13,728.33 and 5,456.70

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Solution

The fourth proportional to 9,150.30, 13,728.33 and 5,456.70 is: 8,186.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.30 : 13,728.33 = 5,456.70 : x
  2. Step 2: Convert to fraction form
    9,150.30/13,728.33 = 5,456.70/x
  3. Step 3: Cross multiply
    9,150.30x = 13,728.33 × 5,456.70
  4. Step 4: Simplify right side
    9,150.30x = 74,911,378.31
  5. Step 5: Solve for x
    x = 74,911,378.31/9,150.30
  6. Step 6: Final answer
    x = 8,186.77

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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.