Home / 11,977.87-16,534.55-8,530.69

Finding the Fourth Proportional to 11,977.87, 16,534.55 and 8,530.69

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Solution

The fourth proportional to 11,977.87, 16,534.55 and 8,530.69 is: 11,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.87 : 16,534.55 = 8,530.69 : x
  2. Step 2: Convert to fraction form
    11,977.87/16,534.55 = 8,530.69/x
  3. Step 3: Cross multiply
    11,977.87x = 16,534.55 × 8,530.69
  4. Step 4: Simplify right side
    11,977.87x = 141,051,120.34
  5. Step 5: Solve for x
    x = 141,051,120.34/11,977.87
  6. Step 6: Final answer
    x = 11,775.98

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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.