Home / 9,420.84-14,129.64-3,416.31

Finding the Fourth Proportional to 9,420.84, 14,129.64 and 3,416.31

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Solution

The fourth proportional to 9,420.84, 14,129.64 and 3,416.31 is: 5,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.84 : 14,129.64 = 3,416.31 : x
  2. Step 2: Convert to fraction form
    9,420.84/14,129.64 = 3,416.31/x
  3. Step 3: Cross multiply
    9,420.84x = 14,129.64 × 3,416.31
  4. Step 4: Simplify right side
    9,420.84x = 48,271,230.43
  5. Step 5: Solve for x
    x = 48,271,230.43/9,420.84
  6. Step 6: Final answer
    x = 5,123.88

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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.