Home / 12,767.58-19,039.64-12,650.94

Finding the Fourth Proportional to 12,767.58, 19,039.64 and 12,650.94

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Solution

The fourth proportional to 12,767.58, 19,039.64 and 12,650.94 is: 18,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.58 : 19,039.64 = 12,650.94 : x
  2. Step 2: Convert to fraction form
    12,767.58/19,039.64 = 12,650.94/x
  3. Step 3: Cross multiply
    12,767.58x = 19,039.64 × 12,650.94
  4. Step 4: Simplify right side
    12,767.58x = 240,869,280.01
  5. Step 5: Solve for x
    x = 240,869,280.01/12,767.58
  6. Step 6: Final answer
    x = 18,865.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.