Home / 11,977.45-16,409.18-11,528.52

Finding the Fourth Proportional to 11,977.45, 16,409.18 and 11,528.52

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Solution

The fourth proportional to 11,977.45, 16,409.18 and 11,528.52 is: 15,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.45 : 16,409.18 = 11,528.52 : x
  2. Step 2: Convert to fraction form
    11,977.45/16,409.18 = 11,528.52/x
  3. Step 3: Cross multiply
    11,977.45x = 16,409.18 × 11,528.52
  4. Step 4: Simplify right side
    11,977.45x = 189,173,559.81
  5. Step 5: Solve for x
    x = 189,173,559.81/11,977.45
  6. Step 6: Final answer
    x = 15,794.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.