Home / 10,216.86-15,327.11-3,980.27

Finding the Fourth Proportional to 10,216.86, 15,327.11 and 3,980.27

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Solution

The fourth proportional to 10,216.86, 15,327.11 and 3,980.27 is: 5,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.86 : 15,327.11 = 3,980.27 : x
  2. Step 2: Convert to fraction form
    10,216.86/15,327.11 = 3,980.27/x
  3. Step 3: Cross multiply
    10,216.86x = 15,327.11 × 3,980.27
  4. Step 4: Simplify right side
    10,216.86x = 61,005,969.43
  5. Step 5: Solve for x
    x = 61,005,969.43/10,216.86
  6. Step 6: Final answer
    x = 5,971.11

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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.