Home / 13,791.34-19,009.92-9,313.66

Finding the Fourth Proportional to 13,791.34, 19,009.92 and 9,313.66

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Solution

The fourth proportional to 13,791.34, 19,009.92 and 9,313.66 is: 12,837.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.34 : 19,009.92 = 9,313.66 : x
  2. Step 2: Convert to fraction form
    13,791.34/19,009.92 = 9,313.66/x
  3. Step 3: Cross multiply
    13,791.34x = 19,009.92 × 9,313.66
  4. Step 4: Simplify right side
    13,791.34x = 177,051,931.51
  5. Step 5: Solve for x
    x = 177,051,931.51/13,791.34
  6. Step 6: Final answer
    x = 12,837.91

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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.