Home / 13,174.23-19,776.78-10,402.77

Finding the Fourth Proportional to 13,174.23, 19,776.78 and 10,402.77

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Solution

The fourth proportional to 13,174.23, 19,776.78 and 10,402.77 is: 15,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.23 : 19,776.78 = 10,402.77 : x
  2. Step 2: Convert to fraction form
    13,174.23/19,776.78 = 10,402.77/x
  3. Step 3: Cross multiply
    13,174.23x = 19,776.78 × 10,402.77
  4. Step 4: Simplify right side
    13,174.23x = 205,733,293.68
  5. Step 5: Solve for x
    x = 205,733,293.68/13,174.23
  6. Step 6: Final answer
    x = 15,616.34

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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.