Home / 8,354.18-11,529.80-5,168.99

Finding the Fourth Proportional to 8,354.18, 11,529.80 and 5,168.99

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Solution

The fourth proportional to 8,354.18, 11,529.80 and 5,168.99 is: 7,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.18 : 11,529.80 = 5,168.99 : x
  2. Step 2: Convert to fraction form
    8,354.18/11,529.80 = 5,168.99/x
  3. Step 3: Cross multiply
    8,354.18x = 11,529.80 × 5,168.99
  4. Step 4: Simplify right side
    8,354.18x = 59,597,420.90
  5. Step 5: Solve for x
    x = 59,597,420.90/8,354.18
  6. Step 6: Final answer
    x = 7,133.84

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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.