Home / 7,420.45-10,239.87-4,063

Finding the Fourth Proportional to 7,420.45, 10,239.87 and 4,063

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Solution

The fourth proportional to 7,420.45, 10,239.87 and 4,063 is: 5,606.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.45 : 10,239.87 = 4,063 : x
  2. Step 2: Convert to fraction form
    7,420.45/10,239.87 = 4,063/x
  3. Step 3: Cross multiply
    7,420.45x = 10,239.87 × 4,063
  4. Step 4: Simplify right side
    7,420.45x = 41,604,591.81
  5. Step 5: Solve for x
    x = 41,604,591.81/7,420.45
  6. Step 6: Final answer
    x = 5,606.75

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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.