Home / 9,427.99-13,009.87-5,449.36

Finding the Fourth Proportional to 9,427.99, 13,009.87 and 5,449.36

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Solution

The fourth proportional to 9,427.99, 13,009.87 and 5,449.36 is: 7,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.99 : 13,009.87 = 5,449.36 : x
  2. Step 2: Convert to fraction form
    9,427.99/13,009.87 = 5,449.36/x
  3. Step 3: Cross multiply
    9,427.99x = 13,009.87 × 5,449.36
  4. Step 4: Simplify right side
    9,427.99x = 70,895,437.94
  5. Step 5: Solve for x
    x = 70,895,437.94/9,427.99
  6. Step 6: Final answer
    x = 7,519.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.