Home / 10,647.81-15,971.09-3,251.66

Finding the Fourth Proportional to 10,647.81, 15,971.09 and 3,251.66

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Solution

The fourth proportional to 10,647.81, 15,971.09 and 3,251.66 is: 4,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.81 : 15,971.09 = 3,251.66 : x
  2. Step 2: Convert to fraction form
    10,647.81/15,971.09 = 3,251.66/x
  3. Step 3: Cross multiply
    10,647.81x = 15,971.09 × 3,251.66
  4. Step 4: Simplify right side
    10,647.81x = 51,932,458.40
  5. Step 5: Solve for x
    x = 51,932,458.40/10,647.81
  6. Step 6: Final answer
    x = 4,877.29

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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.