Home / 14,057.10-21,087.66-5,171.16

Finding the Fourth Proportional to 14,057.10, 21,087.66 and 5,171.16

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Solution

The fourth proportional to 14,057.10, 21,087.66 and 5,171.16 is: 7,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,057.10 : 21,087.66 = 5,171.16 : x
  2. Step 2: Convert to fraction form
    14,057.10/21,087.66 = 5,171.16/x
  3. Step 3: Cross multiply
    14,057.10x = 21,087.66 × 5,171.16
  4. Step 4: Simplify right side
    14,057.10x = 109,047,663.89
  5. Step 5: Solve for x
    x = 109,047,663.89/14,057.10
  6. Step 6: Final answer
    x = 7,757.48

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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.