Home / 12,148.12-18,224.91-3,715.36

Finding the Fourth Proportional to 12,148.12, 18,224.91 and 3,715.36

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Solution

The fourth proportional to 12,148.12, 18,224.91 and 3,715.36 is: 5,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.12 : 18,224.91 = 3,715.36 : x
  2. Step 2: Convert to fraction form
    12,148.12/18,224.91 = 3,715.36/x
  3. Step 3: Cross multiply
    12,148.12x = 18,224.91 × 3,715.36
  4. Step 4: Simplify right side
    12,148.12x = 67,712,101.62
  5. Step 5: Solve for x
    x = 67,712,101.62/12,148.12
  6. Step 6: Final answer
    x = 5,573.87

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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.