Home / 10,620.02-15,914.88-7,824.71

Finding the Fourth Proportional to 10,620.02, 15,914.88 and 7,824.71

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Solution

The fourth proportional to 10,620.02, 15,914.88 and 7,824.71 is: 11,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.02 : 15,914.88 = 7,824.71 : x
  2. Step 2: Convert to fraction form
    10,620.02/15,914.88 = 7,824.71/x
  3. Step 3: Cross multiply
    10,620.02x = 15,914.88 × 7,824.71
  4. Step 4: Simplify right side
    10,620.02x = 124,529,241.11
  5. Step 5: Solve for x
    x = 124,529,241.11/10,620.02
  6. Step 6: Final answer
    x = 11,725.90

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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.