Home / 13,371.85-18,456.25-8,895.79

Finding the Fourth Proportional to 13,371.85, 18,456.25 and 8,895.79

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Solution

The fourth proportional to 13,371.85, 18,456.25 and 8,895.79 is: 12,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.85 : 18,456.25 = 8,895.79 : x
  2. Step 2: Convert to fraction form
    13,371.85/18,456.25 = 8,895.79/x
  3. Step 3: Cross multiply
    13,371.85x = 18,456.25 × 8,895.79
  4. Step 4: Simplify right side
    13,371.85x = 164,182,924.19
  5. Step 5: Solve for x
    x = 164,182,924.19/13,371.85
  6. Step 6: Final answer
    x = 12,278.25

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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.