Home / 11,475.05-15,835.11-6,440.36

Finding the Fourth Proportional to 11,475.05, 15,835.11 and 6,440.36

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Solution

The fourth proportional to 11,475.05, 15,835.11 and 6,440.36 is: 8,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.05 : 15,835.11 = 6,440.36 : x
  2. Step 2: Convert to fraction form
    11,475.05/15,835.11 = 6,440.36/x
  3. Step 3: Cross multiply
    11,475.05x = 15,835.11 × 6,440.36
  4. Step 4: Simplify right side
    11,475.05x = 101,983,809.04
  5. Step 5: Solve for x
    x = 101,983,809.04/11,475.05
  6. Step 6: Final answer
    x = 8,887.44

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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.