Home / 11,529.04-15,887.88-8,380.24

Finding the Fourth Proportional to 11,529.04, 15,887.88 and 8,380.24

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Solution

The fourth proportional to 11,529.04, 15,887.88 and 8,380.24 is: 11,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.04 : 15,887.88 = 8,380.24 : x
  2. Step 2: Convert to fraction form
    11,529.04/15,887.88 = 8,380.24/x
  3. Step 3: Cross multiply
    11,529.04x = 15,887.88 × 8,380.24
  4. Step 4: Simplify right side
    11,529.04x = 133,144,247.49
  5. Step 5: Solve for x
    x = 133,144,247.49/11,529.04
  6. Step 6: Final answer
    x = 11,548.60

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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.