Home / 9,421.28-14,133.48-3,181.88

Finding the Fourth Proportional to 9,421.28, 14,133.48 and 3,181.88

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Solution

The fourth proportional to 9,421.28, 14,133.48 and 3,181.88 is: 4,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.28 : 14,133.48 = 3,181.88 : x
  2. Step 2: Convert to fraction form
    9,421.28/14,133.48 = 3,181.88/x
  3. Step 3: Cross multiply
    9,421.28x = 14,133.48 × 3,181.88
  4. Step 4: Simplify right side
    9,421.28x = 44,971,037.34
  5. Step 5: Solve for x
    x = 44,971,037.34/9,421.28
  6. Step 6: Final answer
    x = 4,773.35

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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.