Home / 13,553.32-20,316.06-5,231.08

Finding the Fourth Proportional to 13,553.32, 20,316.06 and 5,231.08

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Solution

The fourth proportional to 13,553.32, 20,316.06 and 5,231.08 is: 7,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.32 : 20,316.06 = 5,231.08 : x
  2. Step 2: Convert to fraction form
    13,553.32/20,316.06 = 5,231.08/x
  3. Step 3: Cross multiply
    13,553.32x = 20,316.06 × 5,231.08
  4. Step 4: Simplify right side
    13,553.32x = 106,274,935.14
  5. Step 5: Solve for x
    x = 106,274,935.14/13,553.32
  6. Step 6: Final answer
    x = 7,841.25

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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.