Home / 14,309.12-19,747.60-7,936.32

Finding the Fourth Proportional to 14,309.12, 19,747.60 and 7,936.32

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Solution

The fourth proportional to 14,309.12, 19,747.60 and 7,936.32 is: 10,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.12 : 19,747.60 = 7,936.32 : x
  2. Step 2: Convert to fraction form
    14,309.12/19,747.60 = 7,936.32/x
  3. Step 3: Cross multiply
    14,309.12x = 19,747.60 × 7,936.32
  4. Step 4: Simplify right side
    14,309.12x = 156,723,313.16
  5. Step 5: Solve for x
    x = 156,723,313.16/14,309.12
  6. Step 6: Final answer
    x = 10,952.68

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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.