Home / 10,889.20-16,333.80-5,346.10

Finding the Fourth Proportional to 10,889.20, 16,333.80 and 5,346.10

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Solution

The fourth proportional to 10,889.20, 16,333.80 and 5,346.10 is: 8,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.20 : 16,333.80 = 5,346.10 : x
  2. Step 2: Convert to fraction form
    10,889.20/16,333.80 = 5,346.10/x
  3. Step 3: Cross multiply
    10,889.20x = 16,333.80 × 5,346.10
  4. Step 4: Simplify right side
    10,889.20x = 87,322,128.18
  5. Step 5: Solve for x
    x = 87,322,128.18/10,889.20
  6. Step 6: Final answer
    x = 8,019.15

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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.