Home / 13,242.66-19,857.93-7,908.27

Finding the Fourth Proportional to 13,242.66, 19,857.93 and 7,908.27

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Solution

The fourth proportional to 13,242.66, 19,857.93 and 7,908.27 is: 11,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.66 : 19,857.93 = 7,908.27 : x
  2. Step 2: Convert to fraction form
    13,242.66/19,857.93 = 7,908.27/x
  3. Step 3: Cross multiply
    13,242.66x = 19,857.93 × 7,908.27
  4. Step 4: Simplify right side
    13,242.66x = 157,041,872.08
  5. Step 5: Solve for x
    x = 157,041,872.08/13,242.66
  6. Step 6: Final answer
    x = 11,858.79

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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.