Home / 12,241.55-16,898.67-7,772.18

Finding the Fourth Proportional to 12,241.55, 16,898.67 and 7,772.18

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Solution

The fourth proportional to 12,241.55, 16,898.67 and 7,772.18 is: 10,728.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.55 : 16,898.67 = 7,772.18 : x
  2. Step 2: Convert to fraction form
    12,241.55/16,898.67 = 7,772.18/x
  3. Step 3: Cross multiply
    12,241.55x = 16,898.67 × 7,772.18
  4. Step 4: Simplify right side
    12,241.55x = 131,339,420.51
  5. Step 5: Solve for x
    x = 131,339,420.51/12,241.55
  6. Step 6: Final answer
    x = 10,728.99

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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.