Home / 10,216.99-15,327.30-3,980.39

Finding the Fourth Proportional to 10,216.99, 15,327.30 and 3,980.39

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Solution

The fourth proportional to 10,216.99, 15,327.30 and 3,980.39 is: 5,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.99 : 15,327.30 = 3,980.39 : x
  2. Step 2: Convert to fraction form
    10,216.99/15,327.30 = 3,980.39/x
  3. Step 3: Cross multiply
    10,216.99x = 15,327.30 × 3,980.39
  4. Step 4: Simplify right side
    10,216.99x = 61,008,631.65
  5. Step 5: Solve for x
    x = 61,008,631.65/10,216.99
  6. Step 6: Final answer
    x = 5,971.30

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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.