Home / 13,715.72-18,908.30-9,735.38

Finding the Fourth Proportional to 13,715.72, 18,908.30 and 9,735.38

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Solution

The fourth proportional to 13,715.72, 18,908.30 and 9,735.38 is: 13,421.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.72 : 18,908.30 = 9,735.38 : x
  2. Step 2: Convert to fraction form
    13,715.72/18,908.30 = 9,735.38/x
  3. Step 3: Cross multiply
    13,715.72x = 18,908.30 × 9,735.38
  4. Step 4: Simplify right side
    13,715.72x = 184,079,485.65
  5. Step 5: Solve for x
    x = 184,079,485.65/13,715.72
  6. Step 6: Final answer
    x = 13,421.06

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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.