Home / 13,975.08-19,278.84-8,305.82

Finding the Fourth Proportional to 13,975.08, 19,278.84 and 8,305.82

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Solution

The fourth proportional to 13,975.08, 19,278.84 and 8,305.82 is: 11,458.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.08 : 19,278.84 = 8,305.82 : x
  2. Step 2: Convert to fraction form
    13,975.08/19,278.84 = 8,305.82/x
  3. Step 3: Cross multiply
    13,975.08x = 19,278.84 × 8,305.82
  4. Step 4: Simplify right side
    13,975.08x = 160,126,550.75
  5. Step 5: Solve for x
    x = 160,126,550.75/13,975.08
  6. Step 6: Final answer
    x = 11,458.00

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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.