Home / 11,981.77-16,534.96-6,604.40

Finding the Fourth Proportional to 11,981.77, 16,534.96 and 6,604.40

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Solution

The fourth proportional to 11,981.77, 16,534.96 and 6,604.40 is: 9,114.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.77 : 16,534.96 = 6,604.40 : x
  2. Step 2: Convert to fraction form
    11,981.77/16,534.96 = 6,604.40/x
  3. Step 3: Cross multiply
    11,981.77x = 16,534.96 × 6,604.40
  4. Step 4: Simplify right side
    11,981.77x = 109,203,489.82
  5. Step 5: Solve for x
    x = 109,203,489.82/11,981.77
  6. Step 6: Final answer
    x = 9,114.14

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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.