Home / 12,972.06-19,460.93-4,207.86

Finding the Fourth Proportional to 12,972.06, 19,460.93 and 4,207.86

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Solution

The fourth proportional to 12,972.06, 19,460.93 and 4,207.86 is: 6,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.06 : 19,460.93 = 4,207.86 : x
  2. Step 2: Convert to fraction form
    12,972.06/19,460.93 = 4,207.86/x
  3. Step 3: Cross multiply
    12,972.06x = 19,460.93 × 4,207.86
  4. Step 4: Simplify right side
    12,972.06x = 81,888,868.91
  5. Step 5: Solve for x
    x = 81,888,868.91/12,972.06
  6. Step 6: Final answer
    x = 6,312.71

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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.