Home / 13,185.21-19,784.34-6,165.72

Finding the Fourth Proportional to 13,185.21, 19,784.34 and 6,165.72

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Solution

The fourth proportional to 13,185.21, 19,784.34 and 6,165.72 is: 9,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.21 : 19,784.34 = 6,165.72 : x
  2. Step 2: Convert to fraction form
    13,185.21/19,784.34 = 6,165.72/x
  3. Step 3: Cross multiply
    13,185.21x = 19,784.34 × 6,165.72
  4. Step 4: Simplify right side
    13,185.21x = 121,984,700.82
  5. Step 5: Solve for x
    x = 121,984,700.82/13,185.21
  6. Step 6: Final answer
    x = 9,251.63

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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.