Home / 7,421.40-11,132.43-4,132.02

Finding the Fourth Proportional to 7,421.40, 11,132.43 and 4,132.02

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Solution

The fourth proportional to 7,421.40, 11,132.43 and 4,132.02 is: 6,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.40 : 11,132.43 = 4,132.02 : x
  2. Step 2: Convert to fraction form
    7,421.40/11,132.43 = 4,132.02/x
  3. Step 3: Cross multiply
    7,421.40x = 11,132.43 × 4,132.02
  4. Step 4: Simplify right side
    7,421.40x = 45,999,423.41
  5. Step 5: Solve for x
    x = 45,999,423.41/7,421.40
  6. Step 6: Final answer
    x = 6,198.21

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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.