Home / 10,921.05-16,373.07-5,076.90

Finding the Fourth Proportional to 10,921.05, 16,373.07 and 5,076.90

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Solution

The fourth proportional to 10,921.05, 16,373.07 and 5,076.90 is: 7,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.05 : 16,373.07 = 5,076.90 : x
  2. Step 2: Convert to fraction form
    10,921.05/16,373.07 = 5,076.90/x
  3. Step 3: Cross multiply
    10,921.05x = 16,373.07 × 5,076.90
  4. Step 4: Simplify right side
    10,921.05x = 83,124,439.08
  5. Step 5: Solve for x
    x = 83,124,439.08/10,921.05
  6. Step 6: Final answer
    x = 7,611.40

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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.