Home / 11,929.25-16,461.82-6,624.40

Finding the Fourth Proportional to 11,929.25, 16,461.82 and 6,624.40

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Solution

The fourth proportional to 11,929.25, 16,461.82 and 6,624.40 is: 9,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.25 : 16,461.82 = 6,624.40 : x
  2. Step 2: Convert to fraction form
    11,929.25/16,461.82 = 6,624.40/x
  3. Step 3: Cross multiply
    11,929.25x = 16,461.82 × 6,624.40
  4. Step 4: Simplify right side
    11,929.25x = 109,049,680.41
  5. Step 5: Solve for x
    x = 109,049,680.41/11,929.25
  6. Step 6: Final answer
    x = 9,141.37

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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.