Home / 10,777.12-16,165.86-3,381.40

Finding the Fourth Proportional to 10,777.12, 16,165.86 and 3,381.40

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Solution

The fourth proportional to 10,777.12, 16,165.86 and 3,381.40 is: 5,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.12 : 16,165.86 = 3,381.40 : x
  2. Step 2: Convert to fraction form
    10,777.12/16,165.86 = 3,381.40/x
  3. Step 3: Cross multiply
    10,777.12x = 16,165.86 × 3,381.40
  4. Step 4: Simplify right side
    10,777.12x = 54,663,239.00
  5. Step 5: Solve for x
    x = 54,663,239.00/10,777.12
  6. Step 6: Final answer
    x = 5,072.16

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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.