Home / 11,173.24-15,396.80-7,977.52

Finding the Fourth Proportional to 11,173.24, 15,396.80 and 7,977.52

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Solution

The fourth proportional to 11,173.24, 15,396.80 and 7,977.52 is: 10,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.24 : 15,396.80 = 7,977.52 : x
  2. Step 2: Convert to fraction form
    11,173.24/15,396.80 = 7,977.52/x
  3. Step 3: Cross multiply
    11,173.24x = 15,396.80 × 7,977.52
  4. Step 4: Simplify right side
    11,173.24x = 122,828,279.94
  5. Step 5: Solve for x
    x = 122,828,279.94/11,173.24
  6. Step 6: Final answer
    x = 10,993.08

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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.