Home / 12,496.10-18,611.53-12,435.75

Finding the Fourth Proportional to 12,496.10, 18,611.53 and 12,435.75

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Solution

The fourth proportional to 12,496.10, 18,611.53 and 12,435.75 is: 18,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.10 : 18,611.53 = 12,435.75 : x
  2. Step 2: Convert to fraction form
    12,496.10/18,611.53 = 12,435.75/x
  3. Step 3: Cross multiply
    12,496.10x = 18,611.53 × 12,435.75
  4. Step 4: Simplify right side
    12,496.10x = 231,448,334.20
  5. Step 5: Solve for x
    x = 231,448,334.20/12,496.10
  6. Step 6: Final answer
    x = 18,521.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.