Home / 13,783.20-19,023.84-9,067.92

Finding the Fourth Proportional to 13,783.20, 19,023.84 and 9,067.92

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Solution

The fourth proportional to 13,783.20, 19,023.84 and 9,067.92 is: 12,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.20 : 19,023.84 = 9,067.92 : x
  2. Step 2: Convert to fraction form
    13,783.20/19,023.84 = 9,067.92/x
  3. Step 3: Cross multiply
    13,783.20x = 19,023.84 × 9,067.92
  4. Step 4: Simplify right side
    13,783.20x = 172,506,659.21
  5. Step 5: Solve for x
    x = 172,506,659.21/13,783.20
  6. Step 6: Final answer
    x = 12,515.72

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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.