Home / 12,871.26-19,307.08-5,080

Finding the Fourth Proportional to 12,871.26, 19,307.08 and 5,080

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Solution

The fourth proportional to 12,871.26, 19,307.08 and 5,080 is: 7,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.26 : 19,307.08 = 5,080 : x
  2. Step 2: Convert to fraction form
    12,871.26/19,307.08 = 5,080/x
  3. Step 3: Cross multiply
    12,871.26x = 19,307.08 × 5,080
  4. Step 4: Simplify right side
    12,871.26x = 98,079,966.40
  5. Step 5: Solve for x
    x = 98,079,966.40/12,871.26
  6. Step 6: Final answer
    x = 7,620.07

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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.