Home / 12,718.08-19,079.34-3,953.88

Finding the Fourth Proportional to 12,718.08, 19,079.34 and 3,953.88

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Solution

The fourth proportional to 12,718.08, 19,079.34 and 3,953.88 is: 5,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.08 : 19,079.34 = 3,953.88 : x
  2. Step 2: Convert to fraction form
    12,718.08/19,079.34 = 3,953.88/x
  3. Step 3: Cross multiply
    12,718.08x = 19,079.34 × 3,953.88
  4. Step 4: Simplify right side
    12,718.08x = 75,437,420.84
  5. Step 5: Solve for x
    x = 75,437,420.84/12,718.08
  6. Step 6: Final answer
    x = 5,931.51

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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.