Home / 7,935.93-11,909.87-5,431.12

Finding the Fourth Proportional to 7,935.93, 11,909.87 and 5,431.12

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Solution

The fourth proportional to 7,935.93, 11,909.87 and 5,431.12 is: 8,150.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.93 : 11,909.87 = 5,431.12 : x
  2. Step 2: Convert to fraction form
    7,935.93/11,909.87 = 5,431.12/x
  3. Step 3: Cross multiply
    7,935.93x = 11,909.87 × 5,431.12
  4. Step 4: Simplify right side
    7,935.93x = 64,683,933.15
  5. Step 5: Solve for x
    x = 64,683,933.15/7,935.93
  6. Step 6: Final answer
    x = 8,150.77

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1.5x scale

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.