Home / 13,881.38-19,139.54-9,636.06

Finding the Fourth Proportional to 13,881.38, 19,139.54 and 9,636.06

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Solution

The fourth proportional to 13,881.38, 19,139.54 and 9,636.06 is: 13,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.38 : 19,139.54 = 9,636.06 : x
  2. Step 2: Convert to fraction form
    13,881.38/19,139.54 = 9,636.06/x
  3. Step 3: Cross multiply
    13,881.38x = 19,139.54 × 9,636.06
  4. Step 4: Simplify right side
    13,881.38x = 184,429,755.81
  5. Step 5: Solve for x
    x = 184,429,755.81/13,881.38
  6. Step 6: Final answer
    x = 13,286.13

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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.