Home / 17,072.32-25,611.36-12,918.08

Finding the Fourth Proportional to 17,072.32, 25,611.36 and 12,918.08

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Solution

The fourth proportional to 17,072.32, 25,611.36 and 12,918.08 is: 19,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,072.32 : 25,611.36 = 12,918.08 : x
  2. Step 2: Convert to fraction form
    17,072.32/25,611.36 = 12,918.08/x
  3. Step 3: Cross multiply
    17,072.32x = 25,611.36 × 12,918.08
  4. Step 4: Simplify right side
    17,072.32x = 330,849,597.39
  5. Step 5: Solve for x
    x = 330,849,597.39/17,072.32
  6. Step 6: Final answer
    x = 19,379.30

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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.