Home / 12,780.32-19,173.52-4,015.24

Finding the Fourth Proportional to 12,780.32, 19,173.52 and 4,015.24

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Solution

The fourth proportional to 12,780.32, 19,173.52 and 4,015.24 is: 6,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780.32 : 19,173.52 = 4,015.24 : x
  2. Step 2: Convert to fraction form
    12,780.32/19,173.52 = 4,015.24/x
  3. Step 3: Cross multiply
    12,780.32x = 19,173.52 × 4,015.24
  4. Step 4: Simplify right side
    12,780.32x = 76,986,236.51
  5. Step 5: Solve for x
    x = 76,986,236.51/12,780.32
  6. Step 6: Final answer
    x = 6,023.81

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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.