Home / 11,929.70-16,461.87-6,624.20

Finding the Fourth Proportional to 11,929.70, 16,461.87 and 6,624.20

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Solution

The fourth proportional to 11,929.70, 16,461.87 and 6,624.20 is: 9,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.70 : 16,461.87 = 6,624.20 : x
  2. Step 2: Convert to fraction form
    11,929.70/16,461.87 = 6,624.20/x
  3. Step 3: Cross multiply
    11,929.70x = 16,461.87 × 6,624.20
  4. Step 4: Simplify right side
    11,929.70x = 109,046,636.94
  5. Step 5: Solve for x
    x = 109,046,636.94/11,929.70
  6. Step 6: Final answer
    x = 9,140.77

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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.