Home / 13,381.34-18,465.54-7,412.54

Finding the Fourth Proportional to 13,381.34, 18,465.54 and 7,412.54

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Solution

The fourth proportional to 13,381.34, 18,465.54 and 7,412.54 is: 10,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.34 : 18,465.54 = 7,412.54 : x
  2. Step 2: Convert to fraction form
    13,381.34/18,465.54 = 7,412.54/x
  3. Step 3: Cross multiply
    13,381.34x = 18,465.54 × 7,412.54
  4. Step 4: Simplify right side
    13,381.34x = 136,876,553.87
  5. Step 5: Solve for x
    x = 136,876,553.87/13,381.34
  6. Step 6: Final answer
    x = 10,228.91

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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.