Home / 12,617.28-17,404.20-8,133.93

Finding the Fourth Proportional to 12,617.28, 17,404.20 and 8,133.93

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Solution

The fourth proportional to 12,617.28, 17,404.20 and 8,133.93 is: 11,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617.28 : 17,404.20 = 8,133.93 : x
  2. Step 2: Convert to fraction form
    12,617.28/17,404.20 = 8,133.93/x
  3. Step 3: Cross multiply
    12,617.28x = 17,404.20 × 8,133.93
  4. Step 4: Simplify right side
    12,617.28x = 141,564,544.51
  5. Step 5: Solve for x
    x = 141,564,544.51/12,617.28
  6. Step 6: Final answer
    x = 11,219.89

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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.