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Finding the Fourth Proportional to 9,777.77, 14,666.66 and 2,757.72

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Solution

The fourth proportional to 9,777.77, 14,666.66 and 2,757.72 is: 4,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,777.77 : 14,666.66 = 2,757.72 : x
  2. Step 2: Convert to fraction form
    9,777.77/14,666.66 = 2,757.72/x
  3. Step 3: Cross multiply
    9,777.77x = 14,666.66 × 2,757.72
  4. Step 4: Simplify right side
    9,777.77x = 40,446,541.62
  5. Step 5: Solve for x
    x = 40,446,541.62/9,777.77
  6. Step 6: Final answer
    x = 4,136.58

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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.