Home / 13,935.08-20,883.62-7,685.70

Finding the Fourth Proportional to 13,935.08, 20,883.62 and 7,685.70

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Solution

The fourth proportional to 13,935.08, 20,883.62 and 7,685.70 is: 11,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.08 : 20,883.62 = 7,685.70 : x
  2. Step 2: Convert to fraction form
    13,935.08/20,883.62 = 7,685.70/x
  3. Step 3: Cross multiply
    13,935.08x = 20,883.62 × 7,685.70
  4. Step 4: Simplify right side
    13,935.08x = 160,505,238.23
  5. Step 5: Solve for x
    x = 160,505,238.23/13,935.08
  6. Step 6: Final answer
    x = 11,518.07

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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.