Home / 17,611.16-26,412.50-5,127.80

Finding the Fourth Proportional to 17,611.16, 26,412.50 and 5,127.80

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Solution

The fourth proportional to 17,611.16, 26,412.50 and 5,127.80 is: 7,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.16 : 26,412.50 = 5,127.80 : x
  2. Step 2: Convert to fraction form
    17,611.16/26,412.50 = 5,127.80/x
  3. Step 3: Cross multiply
    17,611.16x = 26,412.50 × 5,127.80
  4. Step 4: Simplify right side
    17,611.16x = 135,438,017.50
  5. Step 5: Solve for x
    x = 135,438,017.50/17,611.16
  6. Step 6: Final answer
    x = 7,690.47

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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.