Home / 13,715.77-18,927.43-7,747.25

Finding the Fourth Proportional to 13,715.77, 18,927.43 and 7,747.25

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Solution

The fourth proportional to 13,715.77, 18,927.43 and 7,747.25 is: 10,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.77 : 18,927.43 = 7,747.25 : x
  2. Step 2: Convert to fraction form
    13,715.77/18,927.43 = 7,747.25/x
  3. Step 3: Cross multiply
    13,715.77x = 18,927.43 × 7,747.25
  4. Step 4: Simplify right side
    13,715.77x = 146,635,493.33
  5. Step 5: Solve for x
    x = 146,635,493.33/13,715.77
  6. Step 6: Final answer
    x = 10,691.01

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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.