Home / 12,776.52-19,182.60-10,145.64

Finding the Fourth Proportional to 12,776.52, 19,182.60 and 10,145.64

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Solution

The fourth proportional to 12,776.52, 19,182.60 and 10,145.64 is: 15,232.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.52 : 19,182.60 = 10,145.64 : x
  2. Step 2: Convert to fraction form
    12,776.52/19,182.60 = 10,145.64/x
  3. Step 3: Cross multiply
    12,776.52x = 19,182.60 × 10,145.64
  4. Step 4: Simplify right side
    12,776.52x = 194,619,753.86
  5. Step 5: Solve for x
    x = 194,619,753.86/12,776.52
  6. Step 6: Final answer
    x = 15,232.61

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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.