Home / 11,529.72-15,911.82-6,561.72

Finding the Fourth Proportional to 11,529.72, 15,911.82 and 6,561.72

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Solution

The fourth proportional to 11,529.72, 15,911.82 and 6,561.72 is: 9,055.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.72 : 15,911.82 = 6,561.72 : x
  2. Step 2: Convert to fraction form
    11,529.72/15,911.82 = 6,561.72/x
  3. Step 3: Cross multiply
    11,529.72x = 15,911.82 × 6,561.72
  4. Step 4: Simplify right side
    11,529.72x = 104,408,907.53
  5. Step 5: Solve for x
    x = 104,408,907.53/11,529.72
  6. Step 6: Final answer
    x = 9,055.63

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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.