Home / 19,012.24-28,515.12-5,158

Finding the Fourth Proportional to 19,012.24, 28,515.12 and 5,158

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Solution

The fourth proportional to 19,012.24, 28,515.12 and 5,158 is: 7,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.24 : 28,515.12 = 5,158 : x
  2. Step 2: Convert to fraction form
    19,012.24/28,515.12 = 5,158/x
  3. Step 3: Cross multiply
    19,012.24x = 28,515.12 × 5,158
  4. Step 4: Simplify right side
    19,012.24x = 147,080,988.96
  5. Step 5: Solve for x
    x = 147,080,988.96/19,012.24
  6. Step 6: Final answer
    x = 7,736.12

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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.