Home / 9,108.60-13,666.18-3,186.36

Finding the Fourth Proportional to 9,108.60, 13,666.18 and 3,186.36

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Solution

The fourth proportional to 9,108.60, 13,666.18 and 3,186.36 is: 4,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.60 : 13,666.18 = 3,186.36 : x
  2. Step 2: Convert to fraction form
    9,108.60/13,666.18 = 3,186.36/x
  3. Step 3: Cross multiply
    9,108.60x = 13,666.18 × 3,186.36
  4. Step 4: Simplify right side
    9,108.60x = 43,545,369.30
  5. Step 5: Solve for x
    x = 43,545,369.30/9,108.60
  6. Step 6: Final answer
    x = 4,780.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.