Home / 10,145.12-13,999.68-5,954.72

Finding the Fourth Proportional to 10,145.12, 13,999.68 and 5,954.72

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Solution

The fourth proportional to 10,145.12, 13,999.68 and 5,954.72 is: 8,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.12 : 13,999.68 = 5,954.72 : x
  2. Step 2: Convert to fraction form
    10,145.12/13,999.68 = 5,954.72/x
  3. Step 3: Cross multiply
    10,145.12x = 13,999.68 × 5,954.72
  4. Step 4: Simplify right side
    10,145.12x = 83,364,174.49
  5. Step 5: Solve for x
    x = 83,364,174.49/10,145.12
  6. Step 6: Final answer
    x = 8,217.17

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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.