Home / 8,242.50-12,365.30-3,312.53

Finding the Fourth Proportional to 8,242.50, 12,365.30 and 3,312.53

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Solution

The fourth proportional to 8,242.50, 12,365.30 and 3,312.53 is: 4,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.50 : 12,365.30 = 3,312.53 : x
  2. Step 2: Convert to fraction form
    8,242.50/12,365.30 = 3,312.53/x
  3. Step 3: Cross multiply
    8,242.50x = 12,365.30 × 3,312.53
  4. Step 4: Simplify right side
    8,242.50x = 40,960,427.21
  5. Step 5: Solve for x
    x = 40,960,427.21/8,242.50
  6. Step 6: Final answer
    x = 4,969.42

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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.