Home / 12,777.68-19,153.08-4,986.32

Finding the Fourth Proportional to 12,777.68, 19,153.08 and 4,986.32

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Solution

The fourth proportional to 12,777.68, 19,153.08 and 4,986.32 is: 7,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.68 : 19,153.08 = 4,986.32 : x
  2. Step 2: Convert to fraction form
    12,777.68/19,153.08 = 4,986.32/x
  3. Step 3: Cross multiply
    12,777.68x = 19,153.08 × 4,986.32
  4. Step 4: Simplify right side
    12,777.68x = 95,503,385.87
  5. Step 5: Solve for x
    x = 95,503,385.87/12,777.68
  6. Step 6: Final answer
    x = 7,474.24

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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.