Home / 10,782.84-16,172.46-2,989.56

Finding the Fourth Proportional to 10,782.84, 16,172.46 and 2,989.56

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Solution

The fourth proportional to 10,782.84, 16,172.46 and 2,989.56 is: 4,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.84 : 16,172.46 = 2,989.56 : x
  2. Step 2: Convert to fraction form
    10,782.84/16,172.46 = 2,989.56/x
  3. Step 3: Cross multiply
    10,782.84x = 16,172.46 × 2,989.56
  4. Step 4: Simplify right side
    10,782.84x = 48,348,539.52
  5. Step 5: Solve for x
    x = 48,348,539.52/10,782.84
  6. Step 6: Final answer
    x = 4,483.84

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1.5x scale

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.