Home / 10,420.25-14,379.57-5,945.45

Finding the Fourth Proportional to 10,420.25, 14,379.57 and 5,945.45

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Solution

The fourth proportional to 10,420.25, 14,379.57 and 5,945.45 is: 8,204.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.25 : 14,379.57 = 5,945.45 : x
  2. Step 2: Convert to fraction form
    10,420.25/14,379.57 = 5,945.45/x
  3. Step 3: Cross multiply
    10,420.25x = 14,379.57 × 5,945.45
  4. Step 4: Simplify right side
    10,420.25x = 85,492,942.56
  5. Step 5: Solve for x
    x = 85,492,942.56/10,420.25
  6. Step 6: Final answer
    x = 8,204.50

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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.