Home / 14,985.32-20,679.80-8,271

Finding the Fourth Proportional to 14,985.32, 20,679.80 and 8,271

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Solution

The fourth proportional to 14,985.32, 20,679.80 and 8,271 is: 11,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.32 : 20,679.80 = 8,271 : x
  2. Step 2: Convert to fraction form
    14,985.32/20,679.80 = 8,271/x
  3. Step 3: Cross multiply
    14,985.32x = 20,679.80 × 8,271
  4. Step 4: Simplify right side
    14,985.32x = 171,042,584.45
  5. Step 5: Solve for x
    x = 171,042,584.45/14,985.32
  6. Step 6: Final answer
    x = 11,414.01

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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.