Home / 10,777.80-16,134.30-9,611.40

Finding the Fourth Proportional to 10,777.80, 16,134.30 and 9,611.40

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Solution

The fourth proportional to 10,777.80, 16,134.30 and 9,611.40 is: 14,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.80 : 16,134.30 = 9,611.40 : x
  2. Step 2: Convert to fraction form
    10,777.80/16,134.30 = 9,611.40/x
  3. Step 3: Cross multiply
    10,777.80x = 16,134.30 × 9,611.40
  4. Step 4: Simplify right side
    10,777.80x = 155,073,211.02
  5. Step 5: Solve for x
    x = 155,073,211.02/10,777.80
  6. Step 6: Final answer
    x = 14,388.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.