Home / 11,425.34-17,138.09-7,479.92

Finding the Fourth Proportional to 11,425.34, 17,138.09 and 7,479.92

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Solution

The fourth proportional to 11,425.34, 17,138.09 and 7,479.92 is: 11,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.34 : 17,138.09 = 7,479.92 : x
  2. Step 2: Convert to fraction form
    11,425.34/17,138.09 = 7,479.92/x
  3. Step 3: Cross multiply
    11,425.34x = 17,138.09 × 7,479.92
  4. Step 4: Simplify right side
    11,425.34x = 128,191,419.06
  5. Step 5: Solve for x
    x = 128,191,419.06/11,425.34
  6. Step 6: Final answer
    x = 11,219.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.