Home / 13,967.18-19,278.80-8,305.92

Finding the Fourth Proportional to 13,967.18, 19,278.80 and 8,305.92

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Solution

The fourth proportional to 13,967.18, 19,278.80 and 8,305.92 is: 11,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.18 : 19,278.80 = 8,305.92 : x
  2. Step 2: Convert to fraction form
    13,967.18/19,278.80 = 8,305.92/x
  3. Step 3: Cross multiply
    13,967.18x = 19,278.80 × 8,305.92
  4. Step 4: Simplify right side
    13,967.18x = 160,128,170.50
  5. Step 5: Solve for x
    x = 160,128,170.50/13,967.18
  6. Step 6: Final answer
    x = 11,464.60

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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.