Home / 12,908.17-19,364.06-4,145.77

Finding the Fourth Proportional to 12,908.17, 19,364.06 and 4,145.77

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Solution

The fourth proportional to 12,908.17, 19,364.06 and 4,145.77 is: 6,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.17 : 19,364.06 = 4,145.77 : x
  2. Step 2: Convert to fraction form
    12,908.17/19,364.06 = 4,145.77/x
  3. Step 3: Cross multiply
    12,908.17x = 19,364.06 × 4,145.77
  4. Step 4: Simplify right side
    12,908.17x = 80,278,939.03
  5. Step 5: Solve for x
    x = 80,278,939.03/12,908.17
  6. Step 6: Final answer
    x = 6,219.23

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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.