Home / 14,143.80-19,515.30-8,554.68

Finding the Fourth Proportional to 14,143.80, 19,515.30 and 8,554.68

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Solution

The fourth proportional to 14,143.80, 19,515.30 and 8,554.68 is: 11,803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.80 : 19,515.30 = 8,554.68 : x
  2. Step 2: Convert to fraction form
    14,143.80/19,515.30 = 8,554.68/x
  3. Step 3: Cross multiply
    14,143.80x = 19,515.30 × 8,554.68
  4. Step 4: Simplify right side
    14,143.80x = 166,947,146.60
  5. Step 5: Solve for x
    x = 166,947,146.60/14,143.80
  6. Step 6: Final answer
    x = 11,803.56

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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.