Home / 11,929.10-16,461.33-6,623.60

Finding the Fourth Proportional to 11,929.10, 16,461.33 and 6,623.60

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Solution

The fourth proportional to 11,929.10, 16,461.33 and 6,623.60 is: 9,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.10 : 16,461.33 = 6,623.60 : x
  2. Step 2: Convert to fraction form
    11,929.10/16,461.33 = 6,623.60/x
  3. Step 3: Cross multiply
    11,929.10x = 16,461.33 × 6,623.60
  4. Step 4: Simplify right side
    11,929.10x = 109,033,265.39
  5. Step 5: Solve for x
    x = 109,033,265.39/11,929.10
  6. Step 6: Final answer
    x = 9,140.11

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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.