Home / 21,206.46-29,262.75-12,256.86

Finding the Fourth Proportional to 21,206.46, 29,262.75 and 12,256.86

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Solution

The fourth proportional to 21,206.46, 29,262.75 and 12,256.86 is: 16,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.46 : 29,262.75 = 12,256.86 : x
  2. Step 2: Convert to fraction form
    21,206.46/29,262.75 = 12,256.86/x
  3. Step 3: Cross multiply
    21,206.46x = 29,262.75 × 12,256.86
  4. Step 4: Simplify right side
    21,206.46x = 358,669,429.97
  5. Step 5: Solve for x
    x = 358,669,429.97/21,206.46
  6. Step 6: Final answer
    x = 16,913.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.