Home / 14,310.84-21,472.42-6,920.86

Finding the Fourth Proportional to 14,310.84, 21,472.42 and 6,920.86

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Solution

The fourth proportional to 14,310.84, 21,472.42 and 6,920.86 is: 10,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.84 : 21,472.42 = 6,920.86 : x
  2. Step 2: Convert to fraction form
    14,310.84/21,472.42 = 6,920.86/x
  3. Step 3: Cross multiply
    14,310.84x = 21,472.42 × 6,920.86
  4. Step 4: Simplify right side
    14,310.84x = 148,607,612.68
  5. Step 5: Solve for x
    x = 148,607,612.68/14,310.84
  6. Step 6: Final answer
    x = 10,384.27

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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.