Home / 7,935.43-11,909.12-5,430.62

Finding the Fourth Proportional to 7,935.43, 11,909.12 and 5,430.62

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Solution

The fourth proportional to 7,935.43, 11,909.12 and 5,430.62 is: 8,150.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.43 : 11,909.12 = 5,430.62 : x
  2. Step 2: Convert to fraction form
    7,935.43/11,909.12 = 5,430.62/x
  3. Step 3: Cross multiply
    7,935.43x = 11,909.12 × 5,430.62
  4. Step 4: Simplify right side
    7,935.43x = 64,673,818.56
  5. Step 5: Solve for x
    x = 64,673,818.56/7,935.43
  6. Step 6: Final answer
    x = 8,150.01

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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.