Home / 11,011.58-16,423.20-10,622.78

Finding the Fourth Proportional to 11,011.58, 16,423.20 and 10,622.78

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Solution

The fourth proportional to 11,011.58, 16,423.20 and 10,622.78 is: 15,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.58 : 16,423.20 = 10,622.78 : x
  2. Step 2: Convert to fraction form
    11,011.58/16,423.20 = 10,622.78/x
  3. Step 3: Cross multiply
    11,011.58x = 16,423.20 × 10,622.78
  4. Step 4: Simplify right side
    11,011.58x = 174,459,987.38
  5. Step 5: Solve for x
    x = 174,459,987.38/11,011.58
  6. Step 6: Final answer
    x = 15,843.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.