Home / 10,631.40-15,941.10-4,057.80

Finding the Fourth Proportional to 10,631.40, 15,941.10 and 4,057.80

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Solution

The fourth proportional to 10,631.40, 15,941.10 and 4,057.80 is: 6,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.40 : 15,941.10 = 4,057.80 : x
  2. Step 2: Convert to fraction form
    10,631.40/15,941.10 = 4,057.80/x
  3. Step 3: Cross multiply
    10,631.40x = 15,941.10 × 4,057.80
  4. Step 4: Simplify right side
    10,631.40x = 64,685,795.58
  5. Step 5: Solve for x
    x = 64,685,795.58/10,631.40
  6. Step 6: Final answer
    x = 6,084.41

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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.